Averostra Paul, 2002
Definition- (Ceratosaurus nasicornis + Allosaurus fragilis) (Ezcurra and Cuny, 2007)
Other definitions- (promaxillary fenestra homologous with Dromaeosaurus albertensis) (modified from Paul, 2002)
(Ceratosaurus nasicornis, Vultur gryphus <- Coelophysis bauri) (Dal Sasso, Maganuco and Cau, 2018)
= Neotheropoda sensu Padian et al., 1999
Definition- (Ceratosaurus nasicornis + Passer domesticus) (modified)
= Neotheropoda sensu Kischlat, 2000
Definition- (Ceratosaurus nasicornis + Allosaurus fragilis) (modified)
Comments- Paul (2002) proposed Averostra for a clade of "avepods that either possessed at least one accessory maxillary opening in the lateral wall of the antorbital fossa that led into a bony mediorostral maxillary sinus, or descended from such avepods, and are members of the clade that includes the Dromaeosauridae." This included taxa generally recognized as ceratosaurs and tetanurines, but excluded coelophysoids. The definition is here modified to use Dromaeosaurus albertensis (as the eponymous species for Dromaeosauridae) and to specify the promaxillary fenestra (as it is the first accessory maxillary opening to evolve, and the only one present in taxa Paul considers basal averostrans such as Ceratosaurus).
Ezcurra used Averostra for the ceratosaur+tetanurine clade in several papers, and in 2007 with Cuny gave it a new node-based phylogenetic definition with that extent- "Ceratosaurus nasicornis, Allosaurus fragilis, and all the descendants of their common ancestor." However, Paul's apomorphy-based definition is not limited to that clade as promaxillary fenestrae have been identified in Dilophosaurus, Zupaysaurus, Panguraptor, "Syntarsus" kayentakatae, Eodromaeus, herrerasaurines, Heterodontosaurus and Sacisaurus.  Regardless, Ezcurra's definition has become the consensus and has the advantage of ignoring the ambiguity of when the promaxillary fenestra homologous to dromaeosaurids' evolved.
References- Padian, Hutchinson and Holtz, 1999. Phylogenetic definitions and nomenclature of the major taxonomic categories of the carnivorous dinosaurs Dinosauria (Theropoda). Journal of Vertebrate Paleontology. 19(1), 69-80.
Kischlat, 2000. Tecodoncios: A aurora dos Arcosaurios no Triassico. In Holz and De Rose (eds.). Paleontologia do Rio Grande do Sul. 273-316.
Paul, 2002. Dinosaurs of the Air. The John Hopkins University Press. 460 pp.
Ezcurra and Cuny, 2007. The coelophysoid Lophostropheus airelensis, gen. nov.: A review of the systematics of "Liliensternus" airelensis from the Triassic-Jurassic outcrops of Normandy (France). Journal of Vertebrate Paleontology. 27(1), 73-86.
Dal Sasso, Maganuco and Cau, 2018. The oldest ceratosaurian (Dinosauria: Theropoda), from the Lower Jurassic of Italy, sheds light on the evolution of the three-fingered hand of birds. PeerJ. 6:e5976.

Sinosaurus Young, 1940
= Shuangbaisaurus Wang, You, Pan and Wang, 2017
S. triassicus Young, 1940
pr= Sinosaurus "shawanensis" Young vide [author], 1979
= Dilophosaurus “sinensis” Dong, Hisa and Azuma, 1992
= Dilophosaurus sinensis Hu, 1993
= Shuangbaisaurus anlongbaoensis Wang, You, Pan and Wang, 2017
Sinemurian, Early Jurassic
Huangchiatien, Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
Holotype- (IVPP V34) partial maxilla with teeth (21x14x9, 42x24x14, 20x12x8, 41x21x13, 19x17x11, 18x12x7 mm), maxillary or dentary fragment, three teeth (25x24x12, 15x14x9, 21x19x10 mm)
Paratypes- ?(IVPP V36) eight teeth
?(IVPP V37) tooth
Referred- ?(IVPP V73) astragalocalcaneum (157 mm trans) (Young, 1951)
Sinemurian, Early Jurassic
Ehrchuanshan, Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
Paratype- ?(IVPP V48) seven teeth
Sinemurian, Early Jurassic
Hei Koas Peng, Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
Referred- ?(FMNH CUP 2001) twenty-four teeth (Simmons, 1965)
?(FMNH CUP 2002) two teeth (Simmons, 1965)
?(FMNH CUP 2003) ?third dorsal centrum (Simmons, 1965)
Sinemurian, Early Jurassic
Liuchiaching, Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
Paratype- ?(IVPP V35) eleven teeth
Sinemurian, Early Jurassic
Ta Ti, Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
Referred- ?(FMNH CUP 2004) four teeth (Simmons, 1965)
?(FMNH CUP 2005) three teeth (Simmons, 1965)
?(FMNH CUP 2097) partial dentaries, splenial, two teeth (Simmons, 1965)
?(FMNH CUP 2098) cervical centrum, two dorsal centra (Simmons, 1965)
Sinemurian, Early Jurassic
Zhangjiawa Member (Dark Red Beds) of Lufeng Formation, Yunnan, China
?(IVPP V33) prearticular (Young, 1951)
Hettangian, Early Jurassic
Heilongtan, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
(ZLJT0057; = LDM-LCA 10; 'ZLJT-037' of Stiegler, 2019) skull, incomplete skeleton including femur (590 mm), possible osteoderms, ossified tendons (Dong, 2003)
Hettangian, Early Jurassic
Hewenzi, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
(ZLJT01) (immature) premaxillae fragment, incomplete maxilla, maxilla fragment, lacrimal, frontals, parietals, incomplete braincase, incomplete dentary, atlantal intercentrum, two dorsal rib fragments, partial proximal caudal neural arch (Xing, 2012)
Hettangian, Early Jurassic
Konglong Hill, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
(ZLJ0003) partial skull, incomplete skeleton (Xing, 2012)
Hettangian, Early Jurassic
Qinglongshan, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
(KMV 8701; Kunming-long; Kunming theropod; holotype of Dilophosaurus sinensis) (5.5 m) skull (525 mm), lower jaw (487 mm), nine cervical vertebrae, cervical ribs, fifteen dorsal vertebrae, four sacral vertebrae, thirty-six caudal vertebrae, chevrons, scapulae, coracoids, distal clavicle, humerus, radius, ulna, metacarpals, ilium, pubis, ischium, femur (587 mm), tibia, fibula, astragalus, calcaneum, distal tarsal IV, metatarsus, pes (Anonymous, 1989; described in Hu, 1993)
three teeth (25-30 mm) (Liston et al., 2014)
Hettangian, Early Jurassic
Shawan, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
?(IVPP V279) tooth (Young, 1951)
Hettangian, Early Jurassic
Tachung, Shawan Member (Dull Purplish Beds) of Lufeng Formation, Yunnan, China
Paratype- ?(IVPP V38) thirteen teeth
Referred- (IVPP V504) partial maxilla (Young, 1951)
Hettangian-Sinemurian, Early Jurassic
Lufeng Formation, Yunnan, China
?(FMNH CUP 2095) ?third dorsal centrum (Simmons, 1965)
?(FMNH CUP 2096) three tooth fragments (Simmons, 1965)
Early Jurassic
Fengjiahe Formation, Yunnan, China
(CPM C2140ZA245; holotype of Shuangbaisaurus anlongbaoensis) partial skull (540 mm), partial mandible (Wang, You, Pan and Wang, 2017)
Diagnosis- (after Hu, 1993) vertical groove in dorsal maxillary process; skull ornamented with two fan-shaped crests that diverge obliquely and laterally in dorsal perspective (also in Dilophosaurus); five premaxillary teeth.
(after Carrano et al., 2012) vertical groove on lateral premaxilla adjacent to contact with maxilla.
(after Liston et al., 2014) crown angle unusually low for FABL of 15 mm at 50-64 degrees; high denticle density on distal carina, producing DSDI of 0.62-0.88.
Other diagnoses- (after Young, 1940) teeth irregular in size, laterally compressed with fine mesial and distal serrations, and curved distinctly backwards.
(after Young, 1948) gigantic size; maxilla high; teeth with long, massive root; teeth compressed, sharply pointed and curving backwards; mesial and distal carinae with fine serrations.
Hu (1993) largely included averostran symplesiomorphies in his diagnosis of Dilophosaurus sinensis ("high, large, and robust skull ...; nasal is oblique and long ...; 13 maxillary, and 13 dentary teeth which are laterally compressed and possess small serrations anteriorly and posteriorly. Vertebrae are typically carnosaurian, consisting of 9 cervical, 15 dorsal ... and 36 out of a possible 45 caudals presevered. The coracoid fenestra penetrates dorsally, scapula is narrow and long, illium is low with an extended posterior lobe, pubis is longer than ischium...; the humerus is half as long as the femur, and the tibia is also shorter than the femur. The femoral fourth trochanter lies medially at a point one third down the shaft. Metatarsals are parallel, and pes phalanges are robust with a formula of 2·3·4·5...")  The presence of four incompletely fused sacral vertebrae is probably ontogenetic, while pneumatized limbs and a phalanx on pedal digit V are probably errors by Hu.
Comments- Bien (1940) stated the holotype Huangchiatien site was excavated in December 1939, with Sinosaurus then listed as "Teratosaurus-like form".  Young (1940) initailly described Sinosaurus as "a much larger Carnosauria is represented by a fragmentary part of skull, lower jaw and many isolated teeth and limbs."  He said "the general shape of the teeth resemble that of Teratosaurus and its closely related genera." Another preliminary description is found in Young (1946)- "Sinosaurus triassicus material includes part of a left maxilla with teeth, many isolated teeth, and a number of articulated skeletons. The maxilla and the teeth seem to place it very close to Teratosaurus, both in osteological features and in size."  Young later (1948) noted his manuscript describing and illustrating Sinosaurus in detail "was ready for publication at the end of 1943" but delayed due to WWII.  Paratype teeth were found in 1937-1938, but may not be correctly referred ("since there is only one big Carnosauria found from the Lufeng area, all the teeth belong apparently to Sinosaurus triassicus").  He described his new taxon as a teratosaurid carnosaur, though Teratosaurus is now recognized as a pseudosuchian.  The supposed accessory antorbital fenestrae in both Teratosaurus and Sinosaurus are due to damage, so that Young's proposed difference in their comparative height is invalid to distinguish the genera.  Nor is the maxilla of Sinosaurus taller than Teratosaurus, another supposed difference proposed by Young.  His final character of Sinosaurus' teeth being "rather long stretched" is hard to interpret. Actual differences from Teratosaurus are the unfused interdental plates, shallow external surface ventral to the antorbital fossa and more recurved teeth, all shared with KMV 8701 and ZLJT01.  Young described and referred a sacrum and pelves (IVPP V21), but this specimen is a sauropodomorph (Walker, 1964).  Referred dorsal vertebrae IVPP V30 and V31 are also probably sauropodomorph, comparable to IVPP V100.
Additional jaw and vertebral remians were referred by Young (1951) and Simmons (1965), though none were done so based on diagnostic characters.  IVPP V504 is comparable in antorbital fossa shape, so is probably correctly referred.  IVPP V33 was described by Young as an angular but resembles a prearticular more closely. Young described a partial skeleton (IVPP V100), ilium (IVPP V88) and partial femur and proximal tibia (IVPP V97) as Sinosaurusas well.  Heerden (1977) stated both plateosaurid and melanorosaurid material was present in these specimens.  Young also described astragalocalcaneum IVPP V73 as a carnivorous dinosaur, and postulated either it was a hitherto unknown taxon or (at least aprtially correctly) it "actually represents the only skeletal of the Sinosaurus triassicus and the postcranial skeleton described and tentatively referred to S. triassius as V100, V88, V21 etc., belong to a large Plateosaurid still larger than Lufengosaurus magnus."  Welles and Long (1974) considered this an example of their 'ceratosauroid' tarsus type, consisting of non-tetanuran neotheropods (note it and Dilophosaurus have their figures switched, so that IVPP V73 is figure 6).  While it plausibly belongs to Sinosaurus, the Dilophosaurus sinensis holotype does differ in lacking astragalocalcanear fusion.  FMNH CUP 2097 consists of partial mandibles described by Simmons, who stated they differed from the holotype in having teeth without mesial serrations and with greater labiolingual compression.  Indeed, ZLJT01 has mesial serrations even on its first dentary tooth, so FMNH CUP 2097 may be incorrectly referred.  The teeth and centra referred by Simmons have not been described or illustrated.  Until the 2000s, Sinosaurus was generally viewed as Theropoda or Archosauria indet. with no further descriptive work being done on it.
Dilophosaurus sinensis- KMV 8701 was discovered in August 1987 and was first reported in an anonymous 1989 article in the Japanese newspaper Asahi Shinbun as Kunming-long, as it was found in the prefecture level Kunming City and 'long' means 'dragon' in Chinese.  "The article included three photographs: one showing the dinosaur in situ, one showing the mounted skeleton, and a third showing a closeup of the skull" (Tanimoto, 1989).  Tanimoto reported this in a short piece for Olshevsky's magazine Archosaurian Articulations, which provides information from the newspaper source that has since been shown to be wrong- 400 mm long skull (actually 525 mm), 52 teeth (actually 62), and "probably a single crest" (actually the paired crests converge posteriorly).  It was later featured in Sattler's (1990) popular book misspelled as "Kumming-long", with the same errors and the tooth number changed to the still incorrect 32.  Tanimoto noted it was similar to Dilophosaurus, and Hu submitted its description as Dilophosaurus sinensison June 25th 1991.  According to Olshevsky (2000), Dong et al. (1992) used the name prior to its official publication in January 1993 however.  Holtz (DML, 1995) incorrectly reported that the unofficial name "Kunmingsaurus" "was mentioned in Archosaurian Articulations some years back" for this specimen, but Tanimoto's article only calls it Kunming-long or the "Kunming theropod".  KMV 8701 has been confused with the popular mounted specimen LDM-LCA 10 discovered in 1994, which has a longer skull among other differences. Carrano et al. (2012) believe the differences are ontogenetic or taphonomic, as the skulls share the the diagnostic premaxillary groove, a vertical anterior border of the maxilla, and a similarly shaped and positioned promaxillary fenestra. Currie et al. (in prep.) ascribe the differences to sexual dimorphism, but this has yet to be published.  In an abstract, Currie et al. (2019) state "crest development, anatomy of the femoral trochanters, and ossification of the tibiotarsus show notable differences between the two specimens. However, these same characters have been previously described in other coelophysoids as possible sexual differences. Given that the two skeletons were recovered from the same stratigraphic level (Zhangjiawa Member of the Lower Lufeng Formation) and were separated by only 80 km, it is most parsimonious to conclude that the specimens support the suggestion that there was strong sexual dimorphism in all coelophysoids."  Wang et al. (2017) noted "complete referred skeleton ... (LDM-L10) ... is currently housed at World Dinosaur Valley theme park and catalogd as ZLJT-0057."  Stiegler (2019) refers to the same specimen, saying "'D. sinensis' (ZLJT-037) has several postaxial neural spines which are "capped" by a dorsal expansion, but what appears to be paint over the specimen obscures whether these expansions have the same morphology as osteoderms in other ceratosaurs" and that it has "ossified tendons adjacent to the lateral aspect of the posterior dorsal, sacral, and/or anterior caudal neural spines."  Xing (2012 thesis and resulting publications) has described two additional partial skulls, ZLJ0003 and ZLJT01, collected in 2006 and 2007 respectively.
Shuangbaisaurus- Wang et al. (2017) describe partial skull CPM C2140ZA245 from the equivalant Fengjiahe Formation as a new taxon of theropod Shuangbaisaurus anlongbaoensis.  Discovered by February 2017, this shares parasagittal crests and a vertical premaxillary groove with "Dilophosaurus" sinensis.  Supposedly distinguishing characters are more posteriorly extensive crests, posteroventrally angled jugal and reduced supratemporal fenestrae.  Cau (online 2017) correctly noted the former two can be corrected by realigning the broken skull, while the squamosal and postorbital could easily be crushed against the parietal to make the supratemporal fenestra seem small.  Currie et al. (2019) concluded all specimens including Shuangbaisaurus "fall within the range of morphological variability represented by the Kunming and Lufeng skeletons."
Synonymous? Lamanna et al. (1998) doubted sinensis is referrable to Dilophosaurus based on differences in premaxillary shape, tooth count, lack of antorbital tooth row, shape of infratemporal fenestra and squamosal, and size and position of external mandibular fenestra. Dong (2003) first stated it was similar to, and perhaps synonymous with Sinosaurus triassicus, though without citing supporting evidence. Xing (2012) also synonymizes the taxa without evidence, and cites Currie et al. (in prep.) as supporting the synonymy. Liston et al. (2014) noted two dental characters which may be behind this synonymy.  Most recently, Currie et al. (2019) stated "the [Sinosaurus] holotype (especially the maxilla) was studied in detail, and there can be no doubt that the second skeleton [LDM-LCA 10] is referable to Sinosaurus triassicus."  This may be why Wang et al. (2017) say "only the isolated teeth referred by Young could be located in IVPP collections during the length of this study."
"shawanensis"- Olshevsky (DML, 2002) reported that within an incomplete set of pages he had, "On p. 9 and p. 17 the paper notes from the Lufeng Formation the species Sinosaurus shawanensis (Young) among a number of well-known dinosaur names."  He listed the reference as "Stratigraphy of China, Jurassic System, Summary, Chinese Academy of Geological Sciences, May 1979." and attributed the name to Anonymous, as there was no indication of the author in the pages he possessed.  While such a publication has never surfaced, an identical situation is present in Cheng (1985), a section of "The Jurassic System of China", volume 11 in the Stratigraphy of China series.  Perhaps Olshevsky's paper was a summary of this series printed prior to the series itself, which began in 1982.  In any case, Cheng lists "Sinosaurus shawanensis (Young)" alongside other taxa from his layer 5 of the Dark Red Beds of the Lufeng Formation (equivalent to layer 6 of Luo and Wu, 1994).  Notably this is the only species with the author listed in parentheses, which would normally indicate a species named shawanensis by Young was transferred to Sinosaurus by someone else, but while Young did name Sinosaurus triassicus neither he nor anyone else named a vertebrate species shawanensis (the only animals with that species name before 1985 are brachiopod Cryptospirifer shawanensis Jing et al., 1974 and small shelly fossil Phyllochites shawanensis Duan, 1983, neither from the Lufeng Formation).  Young (1951) did refer one tooth from Shawan to Sinosaurus (IVPP V279), but this was to S. triassicus and was from the Dull Purplish Beds, so doesn't match stratigraphically with Cheng's taxon.  As the holotype and most paratypes of S. triassicus are from the Dark Red Beds, I think Olshevsky was correct when he noted "Perhaps it is significant that Sinosaurus triassicus is not listed, which might mean that  Sinosaurus shawanensis is a synonym", as indeed S. triassicus is not listed by Cheng either.  Thus "shawanensis" is near certainly a typo for triassicus, but is still listed here as this can probably not be proven more than thirty years after the fact with the author dead. 
Note Molina-Perez and Larramendi (2019) represent Sinosaurus "shawanensis" with isolated dorsal vertebra IVPP V31, which was referred to Sinosaurus triassicus by Young (1948).  Yet its size and morphology are similar to mid dorsals of sauropodomorph skeleton IVPP V100, also referred to S. triassicus by Young (1951) in an example of that era's habit of combining sauropodomorph postcrania with jaws and teeth of carnivorous archosaurs.  Contra Molina-Perez and Larramendi, it was not "More recent than Sinosaurus triassicus", being from the Dark Red Beds as well, and has no connection to the name "shawanensis."
Relationships- Carrano et al. (2012) recovered sinensis as a non-orionidan tetanurine, but only three more step remove it from Averostra. Ten steps were needed to place it in Coelophysoidea however, where they recovered Dilophosaurus. As several other relevent taxa were not included (e.g. Zupaysaurus, Dracovenator, Sarcosaurus), this result is questionable.  Larger taxon and character samples were used by Wang et al. (2017) and Dal Sasso et al. (2018), who recovered it as the most basal ceratosaur and as sister to Averostra respectively.
References- Bien, 1940. Discovery of Triassic saurisehian and primitive mammalian remains. Bulletin of the Geological Society of China. 20(3-4), 225-234.
Young, 1940. Preliminary notes on the Lufeng vertebrate fossils. Bulletin of the Geological Society of China. 20(3-4), 235-240.
Young, 1946. The Triassic vertebrate remains of China. American Museum Novitates. 1324, 14 pp.
Young, 1948. On two new saurischians from Lufeng, Yunnan. Bulletin of the Geological Society of China. 28, 75-90.
Young, 1951. The Lufeng saurischian fauna in China. Palaeontologica Sinica. C(13), 1-96.
Walker, 1964. Triassic reptiles from the Elgin area: Ornithosuchus and the origin of carnosaurs. Philosophical Transactions of the Royal Society of London B. 248, 53-134.
Simmons, 1965. The non-therapsid reptiles of the Lufeng Basin, Yunnan, China. Fieldiana Geology. 15, 1-93.
Welles and Long, 1974. The tarsus of theropod dinosaurs. Annals of the South African Museum. 64, 191-218.
Heerden, 1977. The comparative anatomy of the postcranial skeleton and the relationships of the South African Melanorosauridae (Saurischia: Prosauropoda). PhD Thesis, University of the Orange Free State. 175 pp.
[author], 1979. Stratigraphy of China, Jurassic System, Summary. Chinese Academy of Geological Sciences. [pp].
Cheng, 1985. The Lufeng-Dafang Subregion. In Wang, Cheng and Wang (eds.). The Jurassic System of China. Stratigraphy of China. 11, 185-189.
Anonymous, 1989. [title]. Asahi Shinbun. May 29, 1989, [pp].
Tanimoto, 1989. The complete skeleton of an Early Jurassic theropod from Yunnan, China. Archosaurian Articulations. March 1989, 69-70.
Sattler, 1990. The New Illustrated Dinosaur Dictionary. Lothrop, Lee & Shepard Books. 363 pp.
Olshevsky, 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings. 2, 196 pp.
Dong, Hisa and Azuma, 1992. The Hunt for the Asian Dinosaurs. Shogakukan. 142 pp.
Hu, 1993. A new Theropoda (Dilophosaurus sinensis sp. nov.) from Yunnan, China. Vertebrata PalAsiatica. 31(1), 65-69.
Holtz, DML 1995. https://web.archive.org/web/20210524172844/http://dml.cmnh.org/1995Feb/msg00014.html
Lamanna, Smith, You, Holtz and Dodson, 1998. A reassessment of the Chinese theropod dinosaur Dilophosaurus sinensis. Journal of Vertebrate Paleontology. 18(3), 57A.
Olshevsky, 2000. An annotated checklist of dinosaur species by continent. Mesozoic Meanderings. 3, 157 pp.
Olshevsky, DML 2002. https://web.archive.org/web/20181215172409/http://dml.cmnh.org/2002Apr/msg00630.html
Dong, 2003. Contributions of new dinosaur materials from China to dinosaurology. Memoir of the Fukui Prefectural Dinosaur Museum. 2, 123-131. 
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.
Xing, 2012. Sinosaurus from southwestern China. Masters Thesis. University of Alberta. 267 pp.
Xing, Bell, Rothschild, Ran, Zhang, Dong, Zhang and Currie, 2013. Tooth loss and alveolar remodeling in Sinosaurus triassicus (Dinosauria: Theropoda) from the Lower Jurassic strata of the Lufeng Basin, China. Chinese Science Bulletin. 58(16), 1931-1935.
Liston, Naish, Hone, Tianyang and Jian-Rong, 2014. New data on Early Jurassic theropod diversity and feeding behavior in the Lufeng Formation of Yunnan Province, China. Journal of Vertebrate Paleontology. Program and Abstracts 2014, 169.
Xing, Paulina-Carabajal, Currie, Xu, Zhang, Wang, Burns and Dong, 2014. Braincase anatomy of the basal theropod Sinosaurus from the Early Jurassic of China. Acta Geologica Sinica. 88(6), 1653-1664.
Liston, Naish, Hone, Tianyang and Jian-Rong, 2015. New data on Early Jurassic theropod diversity and feeding behaviour in the Lufeng Formation of Yunnan Province, China. SVPCA 2015 abstracts, 92.
Xing, Wang, Snively, Zhang, Dong, Burns and Currie, 2015. Model-based identification of mechanical characteristics of Sinosaurus (Theropoda) crests. Acta Geologica Sinica. 89(1), 1-11.
Cau, online 2017. http://theropoda.blogspot.com/2017/03/shuangbaisaurus-un-sinosaurus.html
Wang, Stiegler, Amiot, Wang, Du, Clark and Xu, 2017 (online 2016). Extreme ontogenetic changes in a ceratosaurian theropod. Current Biology. 27(1), 144-148.
Wang, You, Pan and Wang, 2017. A new crested theropod dinosaur from the Early Jurassic of Yunnan Province, China. Vertebrata PalAsiatica. 55(2), 177-186.
Dal Sasso, Maganuco and Cau, 2018. The oldest ceratosaurian (Dinosauria: Theropoda), from the Lower Jurassic of Italy, sheds light on the evolution of the three-fingered hand of birds. PeerJ. 6:e5976.
Currie, Xing, Wu and Dong, 2019. Anatomy and relationships of Sinosaurus triassicus (Theropoda, Coelophysoidea) from the Lufeng Formation (Lower Jurassic) of Yunnan, China. Canadian Society of Vertebrate Palaeontology 2019 Abstracts, 17.
Molina-Perez and Larramendi, 2019. Dinosaur Facts and Figures: The Theropods and Other Dinosauriformes. Princeton University Press. 288 pp.
Stiegler, 2019. Anatomy, systematics, and paleobiology of noasaurid ceratosaurs from the Late Jurassic of China. PhD thesis, The George Washington University. 693 pp.
Currie, Xing, Wu and Dong, in prep. Anatomy and relationships of Sinosaurus triassicus ("Dilophosaurus sinensis") from the Lufeng Formation (Lower Jurassic) of Yunnan, China.

"Allosaurus" medius Marsh, 1888
Etymology- "medius" is Latin for "moderate", probably referring to its smaller estimated size of "ten or twelve feet in length" compared to Allosaurus fragilis which Marsh had estimated at twenty-five feet long a decade beforehand (Creisler, pers. comm. 1-8-2024).
= Antrodemus medius (Marsh, 1888) Hay, 1902
= Dryptosaurus medius (Marsh, 1888) Gilmore, 1920
= Labrosaurus medius (Marsh, 1888) Kuhn, 1939
Late Aptian, Early Cretaceous
near Miurkirk USNM 41615, Arundel Formation, Prince George's County, Maryland, US
Lectotype- (USNM 4972) tooth (~25.3x~14.7x7 mm)
Referred- ?(Goucher College 2521; lost) left pedal phalanx III-1 (110.0 mm) (Lull, 1911)
?(Goucher College 3121; = Charles Coffin coll.; lost?) tooth (76x28.7x~16 mm) (Bibbins, 1895)
?(Goucher College coll.; = Johns Hopkins University coll.; lost) incomplete right tibia (~894 mm) (Bibbins, 1895)
?(USNM 5693) incomplete tooth (?x~26x? mm) (Gilmore, 1920)
?(USNM 8446; not USNM 3446) tooth (~64x~27x? mm) (Gilmore, 1920 as 3446)
?(USNM 8447) apical tooth (Gilmore, 1920)
?(USNM 8502; = Goucher College 2534) first sacral centrum (90.0 mm) (Lull, 1911)
?(USNM 8503; = Goucher College 2614) (juvenile or subadult) incomplete proximal caudal centrum (107 mm) (Lull, 1911)
?(USNM 8504; = Goucher College 2536) proximal right pedal phalanx II-1 (Lull, 1911)
Diagnosis- Provisionally indeterminate relative to Acrocanthosaurus atokensis.
Other diagnoses- Marsh (1888) initially stated its non-measurement characters as "The teeth are remarkably flat and trenchant, with the edges finely serrated, and the surfaces very smooth. The limb bones, and even the phalanges, are unusually hollow, and the latter have the articulations finely finished", but these are typical of most theropods with the dental characters matching most non-maniraptoriforms and dromaeosaurids.  Indeed the syntype limb elements have since been referred to ornithomimosaurs.
As noted below, Lull (1911) distinguished Allosaurus medius from the type A. fragilis based on supposed postcranial differences, but these elements (Gaucher College 2521, USNM 8502) cannot be referred to the former species.
Comments- Marsh (1888) originally erected medius for large theropod material from the Arundel Formation (with small theropod material being named Coelurus gracilis), "provisionally referred to the genus Allosaurus" for no stated reason and with no explicit difference from A. fragilis.  He mentions teeth (including USNM 4972) "and bones of the limbs and feet" of which only an "astragalus ... 55 mm in width; and 50 mm in fore and aft diameter" (USNM 5652) and "A first phalanx of the hind foot ... 90 mm in length" (phalanx II-1- USNM 5453) are specified.  The latter two elements were considered cotypes of A. medius by Lull (1911) who said "Among the remains referred by Marsh to Allosaurus medius, the tooth alone may be with certainty referred to the Theropoda ; the “first phalanx of the hind foot,” surely, and the astragalus, probably, may be relegated to the ornithopod dinosaurs of the genus Dryosaurus, and, together with other material, become the cotypes of a new species."  They thus became syntypes of his new camptosaurid Dryosaurus grandis, which became Ornithomimus affinis in Gilmore's (1920) work so as not to confuse it with the preexisting species Ornithomimus grandis.  As stated by ICZN Article 74.6, "the first author to have published before 2000 the assumption that the species-group taxon was based upon a single type specimen is deemed to have designated that specimen as the lectotype", thus Lull designated USNM 4972 as the lectotype of Allosaurus medius.  Chure (2000) incorrectly includes USNM 5684 and 5704 as "Marsh material so transferred" (and mistypes USNM 5453 as USNM 4553, which does not exist in their vertebrate paleontology collection), but these remained syntypes of Dryosaurus grandis.  Almost none of the historic Arundel dinosaur specimens of Marsh, Lull and Gilmore had recorded locality data, with most sources simply saying "Near Muirkirk" (Lull, 1911; Gilmore, 1920).  Hatcher (1903) specified "The exact locality of the Marsh material was certain iron ore mines on the farm of Mr. William Coffin, and especially in that one locally known as “Swampoodle” and situated about 1 1/2 miles northeast of Beltsville, on the Baltimore & Ohio Railway, some 13 miles from Washington."  As shown in Kranz's (1996) Figure 9, the Muirkirk Iron Works owned by Coffin were about 2.2 miles from the Swampoodle site, so this description isn't really that specific and USNM Locality 41615 (where the lectotype, and USNM 5685, 5693 and 8503 are cataloged as from) probably refers to at least this large area.
The lectotype- The type tooth was discovered by Hatcher between October 17 and December 17 1887 (based on Appendix C of Kranz, 1996 and Marsh's publication date).  Marsh (1888) initially only says "The teeth are remarkably flat and trenchant, with the edges finely serrated, and the surfaces very smooth."  He then states "One tooth has the crown 30 mm in height; its antero-posterior diameter at base 15 mm; and its transverse diameter 77 mm", which marks this specimen as the lectotype tooth.  Hay (1902) moved the species to Antrodemus, but unexpectedly did not place Allosaurus fragilis in that genus, instead saying "The identification of Marsh's Labrosaurus with Leidy's Antrodemus ... has been made by Mr. F. A. Lucas, of the U. S. National Museum" and citing "Marsh, O. C. 1888 A, p. 93. (Labrosaurus.)" in error as Marsh actually used Allosaurus.  Indeed, Hay (1908) later states "By an inexplicable error the writerᵇ referred to Antrodemus the remains described by Marsh as Allosaurus medius."  Lull says "the only one of the original cotypes referable to it, the tooth, is one of the least distinctive features of the skeleton", distinguishing it from A. fragilis based on supposed vertebral (USNM 8502) and phalangeal (Gaucher College 2521) differences, although each of these elements was misidentified.  Gilmore (1920) wrote "The type tooth has been carefully compared with teeth of Antrodemus and Ceratosaurus, and with those of Upper Cretaceous Theropods; but I have failed to find characters that would distinguish it from any of those genera. In fact on the basis of a single tooth I believe it is impossible to determine the genus to which it pertains, and certainly there are not diagnostic characters available for generic or specific differentiation. In so far as the type specimen is concerned it will always remain a form of doubtful affinities."  He transferred it to Dryptosaurus "largely on geographic considerations" as both are from the east coast of the US unlike Allosaurus.  Kuhn (1939) explicitly used the combination Labrosaurus medius, but erroneously in reference to Marsh 1888, seemingly repeating Hay's 1902 error.  Carpenter et al. (1997) in their Dryptosaurus redescription stated "D. potens and D. medius, are based on fragmentary material and only superficially resemble Dryptosaurus; they should be considered nomina dubia" without supporting evidence.  Harris (1998) wrote "The tooth lacks an adequate description, and its status is indeterminate."  While Lipka considered several more recently discovered Arundel teeth (USNM 497718, 497722-497726) to be Acrocanthosaurus, at the time he said the older specimens "have yet to be compared with the new material."
The lectotype has only ever been figured in labiolingual view, with the best photo by far being that on the USNM online catalog.  The Crown Height ratio is 1.72 while the Crown Breadth Ratio is 0.48, which is comparable to e.g. the tenth dentary tooth of Acrocanthosaurus NCSM 14345 (1.68, 0.51) that has a Crown Basal Length of 28.26 mm, very similar to medius.  There are 13 serrations per 5 mm mesially and 14.6 serrations distally, within the range of Acrocanthosaurus (10-20 mesially, 11.5-17.6 distally).
Referred material- Lull (1911) referred several additional remains to Allosaurus medius seemingly because of their smaller size than his new Creosaurus potens, "by far the largest carnivore known from the Arundel formation" although it is possible locality played a role as the single element of potens was discovered in Washington DC instead. Gilmore (1920) stated "While there may be two large carnivorous dinosaurs (Dryptosaurus? potens (Lull) and D. medius (Marsh) present in the Arundel fauna, I can see no good reason at the present time for believing there is more than one, even though, as a matter of expediency, both species are retained in the present paper. Certainly the scattered teeth and other bones assigned to D. medius indicate an individual or individuals of sufficient size to have had an anterior caudal of the dimensions of the type of Creosaurus potens, here referred to the genus Dryptosaurus."  By the next year Gilmore (1921) specified "At this time Dryptosaurus? medius rests on a single tooth" and "The few scattered bones referred to this species by Lull can be assigned, with equal propriety, to Dryptosaurus? potens."  Huene (1932) explicitly synonymized Creosaurus potens with his Antrodemus medius, stating (translated) "Gilmore (52, p. 121) considers it likely that the teeth and vertebrae, which are found on the same horizon not far from each other, belong together."  Kranz (1998) having created the nomen nudum "Capitalsaurus" for the C. potens holotype listed in his Table 3 "large carnivore" "teeth and various isolated postcrania" as "(possibly "Capitalsaurus"), implying a possible synonymy but it should be noted medius has priority over potens.
Of the "several larger, better preserved teeth", Lull (1911) mentions "The most perfect is one in the possession of the Hon. Charles E. Coffin,¹ Muirkirk, Maryland (pl. xiv, figs. 1, 2). It is about 3 inches (76 mm.) in length and 1 1/8 inches (28.7 mm.) in the anteroposterior diameter. The crenulations of the margin cease about midway toward the root on the anterior convex border, but extend the length of the crown on the posterior edge." Superscript 1 is given as "Or No. 3121, Goucher College."  As the Goucher College collection was transferred to the USNM in 1916 and no tooth matching Lull's figure exists in the USNM catalog, it may be lost (unlike other former GC specimens, Gilmore 1920 does not provide a new USNM number either).  This tooth is first figured as "Allosaurus tooth" by Bibbins (1895) who says it was "taken from the “blue charcoal clay,” and lent for study by Hon. Charles E. Coffin."  Lull also says "one ... (No. 5685, Goucher College) shows decided wear", but Gilmore (1920) correctly notes this was "Wrongly attributed to Goucher College as this is the catalog number of the U. S. National Museum" and this remains true today.  This tooth has since been provisionally referred to Acrocanthosaurus sp. by Carrano (2024).  Gilmore (1920) states that besides the lectotype, "Other teeth in the U. S. National Museum Collections are Nos. 5693, 3446, and 8447."  Note USNM 3446 is a typo for USNM 8446, which the USNM catalog indicates was mentioned by Gilmore.  It also indicates this and USNM 8447 were collected by Bibbins in 1894, while USNM 5685 and 5693 were collected by Hatcher (which according to Kranz' 1996 Appendix C would have been between October 17 1887 and January 27 1888).  Thus when Bibbins says "In the same beds (“brown charcoal clay”) [as the mysterious Allosaurus tibia noted below] and at about the same level, were found fragments of other bones of similar dimensions, and a tooth (Fig. G)³ probably belonging to the same individual" the tooth referenced is probably USNM 8446 or 8447 (note the superscript 3 indicates "The tooth shown in the figure is not the one taken from this bed" but is instead Goucher College 3121).  Carrano determined USNM 8446 to be "not well-enough preserved for" two characters found by Hendrickx and Mateus (2014) to be locally apomorphic for Acrocanthosaurus "to be observed, and I consider them indeterminate to clade within Theropoda." 
A centrum "(No. 2534, G. C.), which seems to be a posterior presacral", was regarded by Gilmore (1920) "as being the anterior vertebra of the sacral series and the plane end (which appears to be sutural) as being posterior. That it is a sacral is indicated not only by comparison with the articulated sacral series of No. 4734 U.S.N.M. (Antrodemus valens), but also by the character of the plane articular end for close articulation with the centrum which followed it and the rapid widening of the anterior half of the neural canal."  Gilmore states this is "Now Cat. No. 8502 U.S.N.M."  Chure (2000) incorrectly lists this specimen as "two posterior presacrals."  The anterior face is slightly concave, 85.0 mm tall and 105.0 mm wide, and based on the USNM catalog photo there are no pleurocoels.  It was collected by Coffin in 1894. 
"The anterior caudal vertebra (No. 2614 a, G. C.) is that of a young individual, as the neural arch had not coossified with the centrum" (Lull, 1911), and Gilmore notes this specimen is "Now Cat. No. 8503, U.S.N.M."  It is slightly amphiplatyan and apneumatic, 92 mm tall and 101 mm wide anteriorly and 93 mm wide posteriorly.  "The first phalanx of the second digit is represented by the proximal half (No. 2536, G. C.)" (Lull, 1911) and as noted by Gilmore is "Now Cat. No. 8503, U.S.N.M.".  Its proximal articular surface is 73 mm tall and 58 mm wide, and as Gilmore says "belongs to the right hind foot."  These two specimens were collected by Bibbins in 1894, and USNM 8503 is probably what Bibbins (1895) referred to when he wrote "Half a mile distant [from what is probably USNM 8446] in a bed of similar character a single vertebra was found which is probably referable to the same species."  Lull also notes "The first phalanx of the third digit (No. 2521, G. C.) (fig. 2) is entire, most excellently preserved, and presents a decided similarity to the type of Allosaurus fragilis", although he states it differs "in being more depressed proximally, especially in the broader, flatter under surface. Distally, the present type is not so broad relatively as that of A. fragilis, and the articular face is more concave transversely."  Unfortunately, Gilmore states "When the Goucher College collection was desposited in the U.S. National Museum this specimen was missing" although Lull's figure remains.  Lull finally states "There are also two distal caudals, one No. 5701, the other unnumbered [eventually numbered USNM 6116 as noted by Gilmore], both of the U. S. National Museum collection", but Gilmore states "their close resemblance to the caudals of Ornithomimus appears to indicate their Ornithomimid affinities" and he referred them to Ornithomimus affinis.  Chure (2000) incorrectly lists USNM 5701 as the number for both caudals.
Bibbins' (1895) mentions "a tibia, probably of Allosaurus, which measures ten inches in width, and thirty-two inches in length, exclusive of the ends, which are lacking."  There is no other record of an Arundel dinosaurian tibial shaft from this period, let alone one over 813 mm in length without preserved ends (longer than even the 635 mm type of Pleurocoelus altus), so exactly what became of this is unknown.  Kranz (online) says "Last seen at Johns Hopkins University June 1909. The nearly 3 ft long section of dinosaur limb bone was excavated by workers in Charles Coffin's iron mines (1895?). It was given a Women's College (Goucher) #3121, but this may be no longer be on the bone" and includes a photo which he cannot recall the source of (pers. comm., 1-19-2024).  Notably, Goucher College 3121 is the number of the tooth figured by Bibbins, and as it is unlikely both were given the same number, a mistake has probably occured somewhere.  According to the Internet Archive Wayback Machine, Kranz's page with quote and photo go back to at least 2009, which is how they are referenced here.  The photo indicates this is a right tibia based on the lateral curvature of Mapusaurus' proximal tibia and the abrupt shadowing proximally indicating the cnemial crest is facing the viewer.   Based on comparison to Mapusaurus, the tibia is ~91% complete and would thus be ~894 mm when complete.  Not much more can be ascertained from the photo except it appears more robust and medially bowed than Mapusaurus MCF-PVPH-108.68.
References- Marsh, 1888. Notice of a new genus of Sauropoda and other new dinosaurs from the Potomac Formation. American Journal of Science. 35, 89-94.
Bibbins, 1895. Notes on the paleontology of the Potomac Formation. Johns Hopkins University Circulars. 15(121), 17-20.
Hay, 1902. Bibliography and catalog of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey. 179, 868 pp.
Hatcher, 1903. Discovery of remains of Astrodon (Pleurocoelus) in the Atlantosaurus Beds of Wyoming. Annals of the Carnegie Museum of Natural History. 2, 9-14.
Hay, 1908. On certain genera and species of carnivorous dinosaurs, with special reference to Ceratosaurus nasicornis Marsh. Proceedings of the United States National Museum. 35(1648), 351-366.
Lull, 1911. Systematic paleontology of the Lower Cretaceous deposits of Maryland: Vertebrata. Maryland Geological Survey. Lower Cretaceous, 183-211.
Gilmore, 1920. Osteology of the carnivorous Dinosauria in the United States National Museum with special reference to the genera Antrodemus (Allosaurus) and Ceratosaurus. United States National Museum Bulletin. 110, l-154.
Gilmore, 1921. The fauna of the Arundel Formation of Maryland. Proceedings of the United States National Museum. 59, 581-594.
Huene, 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Palaeontologie. 4(1), 361 pp.
Kuhn, 1939. Beitrage zur Keuperfauna von Halberstadt. Palaeontologische Zeitschrift. 21, 258-286.
Kranz, 1996. Notes on the sedimentary iron ores of Maryland and their dinosaurian fauna. Maryland Geological Survey Special Publication. 3, 87-111.
Carpenter, Russell, Baird and Denton, 1997. Redescription of the holotype of Dryptosaurus aquilunguis (Dinosauria: Theropoda) from the Upper Cretaceous of New Jersey. Journal of Vertebrate Paleontology. 17(3), 561-573.
Harris, 1998. Large, Early Cretaceous theropods in North America. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin. 14, 225-228.
Kranz, 1998. Mostly dinosaurs: A review of the vertebrates of the Potomac Group (Aptian Arundel Formation), USA. In Lucas, Kirkland and Estep (eds.). New Mexico Museum of Natural History and Science Bulletin. 14, 235-238.
Lipka, 1998. The affinities of the enigmatic theropods of the Arundel Clay facies (Aptian), Potomac Formation, Atlantic coastal plain of Maryland. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin. 14, 229-234.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Kranz, 2009 online. https://terpconnect.umd.edu/~gdouglas/wanted/index.html
Carrano, 2024 (online 2023). First definitive record of Acrocanthosaurus (Theropoda: Carcharodontosauridae) in the Lower Cretaceous of eastern North America. Cretaceous Research. 157, 105814.

Allosaurus? trihedrodon (Cope, 1877) Glut, 1997
= Laelaps trihedrodon Cope, 1877
= Dryptosaurus trihedrodon (Cope, 1877) Hay, 1902
= Creosaurus trigonodon (misspelling of trihedrodon) (Cope, 1877) Osborn, 1931
= Antrodemus trihedrodon (Cope, 1877) Kuhn, 1939
= Hypsirophus trihedrodon (Cope, 1877) Cope vide Chure, 2001
Kimmeridgian-Tithonian, Late Jurassic
Brushy Basin Memberr of the Morrison Formation, Colorado, US
Holotype- (lost) dentary, eight teeth
Referred- ?(AMNH coll., lost) femur, tibia (Chure, 2001)
?(lost) skull fragments, other bones (Chure, 2001)
Comments- The holotype is lost and was not described in enough detail to support synonymy with Allosaurus or other large Morrison theropods. AMNH 5780 was referred to this taxon as well, but is probably an Allosaurus specimen.
References- Cope, 1877. On a carnivorous dinosaurian from the Dakota beds of Colorado. Bulletin of the United States Geological Survey. 3(33), 805-806.
Hay, 1902. Bibliography and catalog of the Fossil Vertebrata of North America. Bulletin of the United States Geological Survey. 179, 868 pp.
Osborn, 1931. Cope: Master Naturalist. Princeton: Princeton University Press, New York. 740 pp.
Kuhn, 1939. Beiträge zur Keuperfauna von Halberstadt [Contributions to the Keuper fauna of Halberstadt]. Palaeontologische Zeitschrift. 21, 258-286.
Glut, 1997. Dinosaurs - The Encyclopedia. McFarland Press, Jefferson, North Carolina. 1076 pp.
Chure, 2001. On the type and referred material of Laelaps trihedrodon Cope 1877 (Dinosauria: Theropoda). In Tanke and Carpenter (eds.). Mesozoic Vertebrate Life: New Research Inspired by the Paleontology of Philip J. Currie. Indiana University Press. 10-18.

Calamospondylus Fox vide Anonymous, 1866
C. oweni Fox vide Anonymous, 1866
Early Barremian, Early Cretaceous
Wessex Formation, England
Holotype- (lost) sacrum (152 mm), ilial fragments
Comments- This is not the same specimen as the Aristosuchus pusillus holotype (Naish, 2002), nor is it definitively shown to be synonymous with Aristosuchus or Calamosaurus.
References- Anonymous, 1866. Another new Wealden reptile. The Athenaeum. 2014, 740.
Naish, 2002. The historical taxonomy of the Lower Cretaceous theropods (Dinosauria) Calamospondylus and Aristosuchus from the Isle of Wight. Proceedings of the Geologists' Association. 113, 153-163.

"Capitalsaurus" Means, 1990
"C." potens (Lull, 1911) Molina-Perez and Larramendi, 2019
= Creosaurus potens Lull, 1911
= Dryptosaurus potens (Lull, 1911) Gilmore, 1920
Late Aptian, Early Cretaceous
Arundel Formation, Washington DC, US
Holotype- (USNM 3049) (7-10 m) proximal caudal centrum (140.0 mm)
Comments- The holotype was collected by J. K. Murphy in a Washington D.C. sewer. Comparison with Allosaurus (Madsen, 1976) indicates that the holotype is probably from the fifth or sixth caudal vertebra. Based on this, it is probably from an animal 7-10 meters long. Gilmore (1920) referred "The median portion of a very large ungual (No. 8505 U.S.N.M.) collected by Arthur Bibbins from the Arundel formation near Contee, Maryland" to this taxon "on account of its great size". However due to its low curvature it is here provisionally assigned to Ornithomimosauria.
When discussing the potens specimen in a popular magazine article, Means (1990) wrote "For the moment the beast is labeled a "dryptosaurus," but it may prove to be a unique member of the dinosaur family. Local paleontologist Peter Kranz would like it to be known as "capitalsaurus," Washington's very own giant reptile."  Kranz (1998) latere listed "Capitalsaurus" in his Table 3 as the name for a large theropod vertebra, with large "teeth and various isolated postcrania" listed as "(possibly "Capitalsaurus")".  The genus is a nomen nudum as the quotation marks suggest it was not "used as valid for a taxon when proposed" (ICZN Article 11.5), and certainly was not "accompanied by a description or definition that states in words characters that are purported to differentiate the taxon" (Article 13.1.1) or "accompanied by the fixation of a type species" (Article 13.3).  While the vertebra was not specified in the 1998 publication, Means is discussing "a large vertebra and other bone fragments of a twenty-foot-long carnivorous dinosaur" discovered in Washington DC in 1898 and Kranz (pers. comm. 8-6-2005) informs me it was meant as a replacement name for Creosaurus potens.  Molina-Perez and Larramendi (2019) published the combination "Capitalsaurus" potens for USNM 3049, as a megaraptorian of "Doubtful identification."  While this does establish the name "Capitalsaurus" potens in the literature, the genus is still a nomen nudum as the authors left it in quotation marks and did not explicitly indicate it as a new genus (Article 16.1).
Relationships- Comparison to other theropods is difficult due to both the fragmentary nature of the specimen and the few detailed descriptions of caudal centra in the literature. As "Capitalsaurus" was discovered in Cretaceous deposits, it is assumed that the centrum did not derive from a basal theropod such as a coelophysoid or Dilophosaurus, which are only known from the Triassic and Early Jurassic. This species has been referred to Allosaurus and Dryptosaurus in the past, but is stratigraphically closest to Acrocanthosaurus. It will be compared to these three genera first, then to other genera that may be similar. The proximal caudals of Allosaurus are amphiplatyan to slightly procoelous, the opposite of "Capitalsaurus". Also, they are about as wide as tall, sometimes wider, and the ventral edge is much more concave. The ventral surface has a slight groove instead of a keel. Those of Dryptosaurus share the straighter ventral edge and are slightly taller than wide (~1.05 times), but no further details can be discerned. Acrocanthosaurus has caudal pleurocoels (like Carcharodontosaurus, but not Giganotosaurus), a concave ventral margin and amphiplatyan or amphicoelous centra. The ventral surface is grooved and the centra are 1-1.2 times taller than wide. The only theropod described as having opisthocoelous caudals is the segnosaur Nothronychus. This taxon differs from "Capitalsaurus" in having a median ventral groove, pleurocoels, an autapmorphic posterolateral tubercle, larger chevron facets and being slightly wider (1.16 times taller than wide). Among other segnosaurs, at least Neimongosaurus and Segnosaurus lack opisthocoelous centra. Several theropods are known to lack ventral grooves on the proximal caudals. These include Elaphrosaurus, Carnotaurus, Eustreptospondylus, Suchomimus, Sinraptor dongi, "Alashansaurus", Ornithomimus? sedens and alvarezsaurids. Of these, only alvarezsaurids are known have ventral keels, though the condition in most others is uncertain in this regard. Although most other theropods (eg. Ceratosaurus, Torvosaurus, Monolophosaurus, Nedcolbertia, Sinraptor hepingensis, Tyrannosaurus, Archaeornithomimus, Gallimimus, Microvenator, Chirostenotes) are described as having a ventral groove, the condition in Sinraptor dongi at least changes from convex in the proximal caudals to grooved in the mid and posterior caudals. This suggests our knowledge of which theropods have convex ventral surfaces on their proximal caudals is extremely limited, and subject to change as specimens are described more fully. Although alvarezsaurids do have ventral keels, they are otherwise quite dissimilar to "Capitalsaurus" in having strongly procoelous centra. Several theropods are similar to "Capitalsaurus" in having centra over 1.2 times taller than they are wide, including Monolophosaurus, sinraptorids and Bagaraatan. Theropods known to have more circular centra are Ceratosaurus, Carnotaurus, Elaphrosaurus, Torvosaurus, Baryonyx, Piatnitzkyosaurus, Allosaurus, Acrocanthosaurus, Carcharodontosaurus, Dryptosaurus, ornithomimids and oviraptorosaurs (which are diagnosed in part by their wide caudal centra). Paravians have distinctively subrectangular centra, so "Capitalsaurus" can be excluded from this clade. The condition found in "Capitalsaurus", where the ventral edge of the centrum is nearly straight, is extremely rare in theropods, being otherwise noted in Dryptosaurus, tyrannosaurids and Bagaraatan. This can vary greatly with position in some taxa such as Bagaraatan, so undue emphasis shouldn't be placed on the character. While clearly not a derived oviraptorosaur or paravian, the current phylogenetic utility of proximal caudal centra does not allow placement more precise than assumed Averostra incertae sedis. While currently unique compared to described theropod caudals, the amount of variation between caudal centra in single specimens is just starting to be revealed (Sinraptor dongi's ventral groove/keel; titanosaurid's articular surfaces varying from opisthocoelous to procoelous; Bagaraatan's ventral edge concavity). Because of this potentially high variation, I am extremely cautious as to the taxonomic utility of this caudal centrum and only doubtfully retain it as a valid taxon.
References- Lull, 1911. The Reptilia of the Arundel Formation. Maryland Geological Survey. Lower Cretaceous, 173-211.
Gilmore, 1920. Osteology of the carnivorous Dinosauria in the United States National Museum, with special reference to the genera Antrodemus (Allosaurus) and Ceratosaurus. United States National Museum Bulletin. 110, l-154.
Madsen, 1976. Allosaurus fragilis: A revised osteology. Utah Geological Survey Bulletin. 109, 1-163.
Means, 1990. The great outdoors. The Washingtonian. 25(7), 124-160.
Kranz, 1998. Mostly dinosaurs: A review of the vertebrates of the Potomac Group (Aptian Arundel Formation), USA. In Lucas, Kirkland and Estep (eds.). New Mexico Museum of Natural History and Science Bulletin. 14, 235-238.
Molina-Perez and Larramendi, 2019. Dinosaur Facts and Figures: The Theropods and Other Dinosauriformes. Princeton University Press. 288 pp.

"Coelurosaurus" Huene, 1929
Campanian-Maastrichtian, Late Cretaceous
Allen Formation, Rio Negro, Argentina
Material- (MLP CS 1478) partial ungual (~19 mm)
Comments- Coelurosaurus was listed by Huene (1929) in a faunal list for MLP CS 1478, a partial ungual from the Allen Formation. As Olshevsky (DML, 1999) noted, the name is probably a typographical error for Coelurosauria made when translating the paper from German to Spanish. This is indicated by the fact he never attaches a name to the specimen in the description or plates (it's described under the heading "coelurosaur claw"). Since "Coelurosaurus" was apparently not meant as a valid name when it was published (ICZN Article 11.5), it is a nomen nudum.
The ungual consists of the distal half, which exhibits an interesting combination of features. It is highly curved and transversely compressed, suggesting it is a tetanurine manual ungual or a paravian pedal ungual (though note both Mapusaurus and alvarezsaurids differ in being straighter). The cross section at midlength is triangular (expanded ventrally), unlike the roughtly oval shape of most theropod manual unguals (e.g. Noasaurus, Fukuiraptor, Deinonychus) or the blade-like shape of Megaraptor's manual unguals and paravian sickle claws. Yet the shape is not similar to most theropod pedal unguals either, as the ventral surface is concave and the ventral transverse expansion does not flare past the sides of the ungual. Notably, the ungual is quite asymmetric, with one wall of the ventral groove projecting further ventrally. This is more prominent distally, where the groove faces more to the side than downward. The asymmetry and ventral groove are characteristic of abelisaurid pedal unguals, though these are more straight and broad. Noasaurid pedal unguals (as judged by Masiakasaurus) are also straight, are only slightly asymmetrical and are keeled ventrally. Noasaurus itself possesses a controversial ungual most recently thought to be manual which is curved and compressed like "Coelurosaurus", but is not very asymmetrical and has a ventral keel. Another possibility is that "Coelurosaurus" belongs to a bird, as many birds are comparably sized with highly curved pedal unguals. Unfortunately, comparable bird unguals (e.g. Patagopteryx, Soroavisaurus, MACN PV RN 1105) are not described in enough detail to be usefully compared. Huene considered it to be a manual ungual based on its curvature and believed it was a distinct specimen. It is here referred to Averostra incertae sedis due to its Cretaceous age.
References- Huene, 1929. Los saurisquios y ornitisquios del Cretacéo Argentino. Anales del Museo de La Plata (series 3). 3, 1-196.
Olshevsky, DML 1999. https://web.archive.org/web/20200720012936/http://dml.cmnh.org/1999Nov/msg00507.html

Diplotomodon Leidy, 1868
= Tomodon Leidy, 1865 (preoccupied Dumeril, 1853)
D. horrificus (Leidy, 1865) Leidy, 1868
= Tomodon horrificus Leidy, 1865
Maastrichtian, Late Cretaceous
Navesink or Hornerstown Formation, New Jersey, US
Holotype- (ANSP 9680; holotype of Tomodon horrificus) tooth
Comments- This taxon is often associated with Dryptosaurus aquilunguis, following Molnar (1990). However, the teeth of the latter taxon are not distinctive in their shape, and more detailed comparisons have yet to be made.
References- Leidy, 1865. Memoir on the extinct reptiles of the Cretaceous formations of the United States. Smithsonian Contributions to Knowledge. 14, 1-135.
Leidy, 1868. Remarks on Conosaurus of Gibbes. Proceedings of the Academy of Natural Sciences of Philadelphia. 20, 200-202.
Molnar, 1990. Problematic Theropoda: "Carnosaurs". In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press. 306-317

"Elaphrosaurus" iguidiensis Lapparent, 1960b
= Elaphrosaurus "iguidiensis" Lapparent, 1957
Albain, Early Cretaceous
Continental Intercalaire, Algeria
Syntypes- (MNHN coll.; from Alrar) tooth
(MNHN coll.; from Timimoun) incomplete mid caudal vertebra (65 mm)
Aptian, Early Cretaceous
Elrhaz Formation, Niger
Syntype- (MNHN coll.; from El Rhaz) manual ungual (30 mm)
Referred- (MNN GDF coll.) (many individuals) dozen teeth, vertebrae, limb elements, metatarsals, phalanges (Taquet, 1976)
Bathonian-Oxfordian, Middle-Late Jurassic
Tiouraren Formation of the Irhazer Group, Niger
Syntypes- (MNHN coll.; from Ebrechko) (many individuals) thirty-one teeth
(MNHN coll.; from Ifayen Ignère) distal caudal vertebra (55 mm)
Cenomanian, Late Cretaceous
Echkar Formation, Niger
Syntype- (MNHN coll.; from In Abangarit) distal caudal centrum (80 mm)
Early Cenomanian, Late Cretaceous
Continental Intercalaire, Tunisia
Syntypes- (MNHN coll.; from Guermessa) tooth
(MNHN coll.; from Rémada: Kanboute) tooth
(from Dahar) three teeth (Lapparent, 1951)
Early Cenomanian, Late Cretaceous
Continental Intercalaire, Libya (Giado)
(MNHN coll.) tooth,
Berriasian-Barremian, Early Cretaceous
Irhazer Shales Group, Niger (In Tedreft)
Albian-Early Cenomanian, Early Cretaceous-Late Cretaceous
Tegama Group, Niger (Tiguidi: Zinder piste)
Early Cenomanian, Late Cretaceous
Continental Intercalaire, Tunisia (Chenini)
Syntypes- (MNHN coll.; from Chenini, Giado, In Tedreft, and Tiguidi: Zinder piste in addition to above localities) (many individuals) fourteen teeth, five distal caudal vertebrae (40, 40 mm; from Abangarit, Ifayen Ignère, and/or Timimoun), distal femur, incomplete tibia (350 mm)
Comments- Lapparent (1957) originally used Elaphrosaurus iguidiensis in three faunal lists- Southern Tunisia (Dahar cliff including Guermessa, Chenini, Remada and Dehibat, and Giado), Northern Sahara (including Alrar, In Akhamil, Djoua, Aoulef and Timimoun) and Southern Sahara (including Tamesna, Agades and Tiguidi). As no other information about iguidiensis was provided, this name fails ICZN Article 13.1.1 ("accompanied by a description or definition that states in words characters that are purported to differentiate the taxon") so was a nomen nudum. Among those localities, the only potential material of iguidiensis published earlier are three teeth "of another species of Megalosaurus" (besides saharicus) from Dahar cliff (either Guermessa, Chenini or Remada) mentioned by Lapparent (1951). Lapparent (1960a) later noted caudal vertebrae and fragments of two new Elaphrosaurus species were found in Timimoun and In Tedreft, though the species were left unnamed. Lapparent (1960b) officially named iguidiensis, basing it on remains from fifteen localities which may not belong to the same taxon. The locality of numerous remains was not stated in 1960, though there were four localities listed as having iguidiensis material (Chenini, Giado, In Tedreft, and Tiguidi: Zinder piste) when no material was specified as being from them. The caudals were stated to all be from Abangarit, Ifayen Ignère and Timimoun, so the five unspecified caudals must come from those areas. A tooth and bone are from Giado, so the bone is either the femur or tibia.  No holotype was designated, so all 1960b material are syntypes. Which material should be made the lectotype is uncertain, though the species name references Tiguidi cliff where undetermined remains from Zinder piste were found.
Lapparent (1960b) only differentiated iguidiensis from Elaphrosaurus bambergi due to "constantly lesser size and some accentuated differences", and from Spinostropheus (then Elaphrosaurus) gautieri due to smaller size and "the form of the vertebrae". The figured teeth are recurved and labiolingually compressed with small distal serrations extending along the entire crown and similar-sized (DSDI ~.8) mesial serrations along the apical half in at least the figured Alrar specimen. Elongation ranges greatly between 1.15-~2.7 times FABL. Enamel is unornamented and the crowns are not separated from the roots by a constriction. The two illustrated caudals are elongated (2.23-2.86 times central height) and amphicoelous to amphiplatyan with no transverse processes. The manual ungual from El Rhaz is said to have vascular grooves that are "situated very high and have a very different shape from those of large theropods" and the hindlimb material is basically undescribed. No appendicular material is illustrated. None of the published data allows assignment to Ceratosauria, Coelurosauria, or other averostran groups.
References- Lapparent, 1951. Découverte de Dinosauriens, associés à une faune de Reptiles et de Poissons, dans le Crétacé inférieur de l'Extrême Sud tunisien [Discovery of dinosaurs associated with a reptile and fish fauna in the Lower Cretaceous of extreme southern Tunisia]. Comptes Rendus de l'Académie des Sciences à Paris. 232, 1430-1432.
Lapparent, 1957. The Cretaceous dinosaurs of Africa and India. Journal of the Palaeontological Society of India. 2, 109-112.
Lapparent, 1960a. Les dinosaures du Sahara central [The dinosaurs of the central Sahara]. Travaux de l'Institut de Recherches Saharienne.s 19(1-2), 7-24.
Lapparent, 1960b. Les dinosauriens du "Continental intercalaire" du Sahara central. Memoirs of the Geological Society of France. 88A, 1-57.
Taquet, 1976. Géologie et Paléontologie du Gisement de Gadoufaoua (Aptien du Niger) [Geology and Paleontology of the Gadoufaoua Locality (Aptian of Niger)]. Cahiers de Paléontologie, Centre National de la Recherche Scientifique, Paris. 191 pp.
Rauhut and Carrano, 2016. The theropod dinosaur Elaphrosaurus bambergi Janensch, 1920, from the Late Jurassic of Tendaguru, Tanzania. Zoological Journal of the Linnean Society. 178(3), 546-610.

"Futabasaurus" Lambert, 1990
Coniacian, Late Cretaceous
Ashizawa Formation of the Futaba Group, Japan
Material- (unknown collection; Futaba-ryu) (~1.5-2 m) partial tibia (~56 mm wide)
Comments- This specimen was originally mentioned by Hasegawa et al. (1987) in an abstract as Futaba-ryu, as dinosaur remains in Japan are often given nicknames ending in "ryu" (= dragon). Lambert (1990) inappropriately made it into a genus name, listing it as "Futabasaurus" in a childrens' book. It was mentioned as being a large carnosaur (sensu lato) from Japan that had yet to be described. Dong et al. (1990) referred to it as Tyrannosauridae gen. et sp. indet. and published a photograph. Olshevsky (1991) listed it as an allosaurid without comment, and later (DML, 2001) as a probable junior synonym of Tarbosaurus. Chure (2000) briefly discussed and illustrated the specimen, excluding it from Allosauridae based on a few differences from Allosaurus (lateral edge less elongated ventrally; medial edge not rounded and drawn out medially). While these mean "Futabasaurus" is not Allosaurus itself, they do little to pin down its relationships further. With only a low quality photocopy to go by, I can't make any phylogenetic judgements.
A genus of elasmosaurid plesiosaur was later named Futabasaurus by Sato et al. (2006), making the name unavailable for the theropod tibia.
References- Hasegawa, Watanabe, Oshida, Takizawa and Koda, 1987. Dinosaur assemblage from the Futaba Group, Fukushima. Abstract of the Annual Meeting of the Paleontological Society of Japan. 4.
Lambert, 1990. The Dinosaur Data Book. New York, Avon Books. 320 pp.
Dong, Hasegawa and Azuma, 1990. The Age of Dinosaurs in Japan and China. Fukui, Japan. Fukui Prefectural Museum. 65 pp.
Matsukawa and Obata, 1994. Dinosaurs and sedimentary environments, in the Japanese Cretaceous: A contribution to dinosaur facies in Asia based on molluscan paleontology and stratigraphy. Cretaceous Research. 15, 101-125.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Sato, Hasegawa and Manabe, 2006. A new elasmosaurid plesiosaur from the Upper Cretaceous of Fukushima, Japan. Palaeontology. 49(3), 467-484.

Inosaurus Lapparent, 1960
I. tedreftensis Lapparent, 1960
Berriasian-Barremian, Early Cretaceous
Irhazer Group, Niger
Syntype- (MNNHN coll.; from In Tedreft) two anterior dorsal vertebrae (30 mm), two posterior dorsal vertebrae (33 mm), two sacral vertebrae, five mid-distal caudal vertebrae (50 mm), seven caudal vertebrae fragments, proximal tibia
Albian-Early Cenomanian, Early Cretaceous-Late Cretaceous
Tegama Group, Niger
Syntypes- ?(MNNHN coll.; from In Abangarit) partial fourth sacral vertebra fused to fifth sacral vertebra (44 mm)
?(MNNHN coll.; from In Abangarit) proximal caudal centrum (40 mm)
?(MNNHN coll.; from In Abangarit) mid caudal vertebra (30 mm)
?(MNNHN coll.; from In Abangarit) distal caudal vertebra (12 mm)
Early Cenomanian, Late Cretaceous
Baharija Formation, Egypt
Referred- ?(IPHG 1912 VIII 63c) caudal vertebra (Stromer, 1934)
?(IPHG 1912 VIII 63e) caudal vertebra (Stromer, 1934)
?(IPHG 1912 VIII 63g) caudal vertebra (Stromer, 1934)
Comments- The associated individual from In Tedreft is the specimen Lapparent (1960) based Inosaurus' diagnosis and species name on, so should probably be made the lectotype if it is redescribed. He also based the taxon on three isolated caudals and a partial sacrum from In Abangarit. They were referred to Inosaurus because of their shorteness relative to their height. In addition, the mid caudal was said to "present some rather close characters" to the proximal caudal, while the sacral centrum proportions were said to be similar. Only the proximal caudal was illustrated. Finally, Lapparent found three caudals described by Stromer (1934) from the Baharija Formation to be similar, without further justification. The referral of the In Abangarit and Baharija specimens to a single taxon, let alone Inosaurus, is dubious.
References- Stromer, 1934. Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. II. Wirbeltierreste der Baharije-Stufe (unterstes Cenoman). 13. Dinosauria. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-naturwissenschaftliche Abteilung, Neue Folge. 22, 1-79.
Lapparent, 1960. Les dinosauriens du "Continental intercalaire" du Sahara central. Memoirs of the Geological Society of France. 88A, 1-57.

"Katsuyamasaurus" Lambert, 1990
Middle-Late Aptian, Early Cretaceous
Kitadani Formation of the Akaiwa Subgroup of the Tetori Group, Japan
Material- (unknown collection; Katsuyama-ryu) (~4 m) (?) mid caudal vertebra (68 mm), ulna (~200 mm)
Comments- This material was informally called "Katsuyama-ryu", as found in Azuma (1991). Lambert (1990) inappropriately made it into a genus name, listing it as "Katsuyamasaurus" in a childrens' book. Dong et al. (1990) published photos of the remains, labeling them Allosauridae indet.. They were later described by Chure (2000), who suggested the caudal may derive from an ornithopod. He noted it lacks lateral pleurofossae and was reminiscent of iguanodonts, which are known from the same quarry (Fukuisaurus, described by Kobayashi and Azuma, 2003). Olshevsky (DML, 2000) considered "Katsuyamasaurus" a likely junior synonym of Fukuiraptor, which was discovered later in the same quarry. However, the ulna differs from Fukuiraptor in being straight proximally, with a larger olecranon process and a more prominent and proximally projecting anteroproximal process. The large olecranon process excludes it from Maniraptoriformes, but more precise affinities within Theropoda are unknown at this time.
References- Dong, Hasegawa and Azuma, 1990. The Age of Dinosaurs in Japan and China. Fukui, Japan. Fukui Prefectural Museum. 65 pp.
Lambert, 1990. The Dinosaur Data Book. New York, Avon Books. 320 pp.
Azuma, 1991. Early Cretaceous Dinosaur Fauna from the Tetori Group, central Japan. Research on Dinosaurs from the Tetori Group (1). Professor S. Miura Memorial Volume, 55-69.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Olshevsky, DML 2000. https://web.archive.org/web/20191030133242/http://dml.cmnh.org/2000Dec/msg00399.html
Kobayashi and Azuma, 2003. A new iguanodontian (Dinosauria: Ornithopoda) from the Lower Cretaceous Kitadani Formation of Fukui Perfecture, Japan. Journal of Vertebrate Paleontology. 23(1), 166-175.

"Labrosaurus" "huene" Huene vide Madsen and Welles, 2000
Late Jurassic
Szechuan, China
Material- tooth
Comments- Madsen and Welles (2000) state this was a nomen nudum based on a tooth from the Jurassic of Szechuan mentioned by Huene (1956) on page 481, and later listed by him (1958; p. 205) as a nomen nudum.
However, the only thing Huene says about Labrosaurus in his 1956 paper is, "Labrosaurus Marsh Teeth, Grooves similar to Ceratosaurus from the Upper Jurassic of Wyoming, of Tendaguru and from Szechuan." This is on the very bottom of page 481, with "Huene, Palaeontologie" in smaller type below, which repeats every eight pages in the volume presumably to separate it into regular sections. Similarly, in his 1958 paper, Huene only mentions Labrosaurus on page 205, where he lists "Labrosaurus Marsh Upper Jurassic Szechuan, China" in his list of coelurosaurs. Thus Huene did not name Labrosaurus "huene", but did refer to Labrosaurus teeth from Szechuan. Chure (2000) states that Huene includes Szechuan in the distribution of Labrosaurus, "an apparent reference to medially ridged teeth described by Young (1942)." Young only mentions Labrosaurus stechowi on page 299, to compare it to Chienkosaurus, noting the latter lacks lingual fluting. Chienkosaurus and Szechuanosaurus are both listed separately by Huene, so he did not intend to sink either into Labrosaurus. Perhaps Huene was referring to fluted teeth from Szechuan (which could be ceratosaurid) or perhaps it was a mistake. It is clear that the species "huene" was a mistake by Madsen and Welles (2000) and never intended as a valid species by anyone.
References- Young, 1942. Fossil vertebrates from Kuangyuan, N. Szechuan, China. Bulletin of the Geological Society of China. 22(3-4), 293-309.
Huene, 1956. Palaontologie und Phylogenie der Niederen Tetrapoden. Jena, Gustav Fischer, 716 pp.
Huene, 1958. Pre-Tertiary saurians of China. Vertebrata PalAsiatica. 2(4), 201-207.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Madsen and Welles, 2000. Ceratosaurus (Dinosauria, Theropoda) a revised osteology. Miscellaneous Publication 00-2 Utah Geological Survey. 80 pp.

"Mangahouanga" Molina-Perez and Larramendi, 2019
Campanian-Maastrichtian, Late Cretaceous
Mangahouanga Stream, Mata Series, North Island, New Zealand
Material- (NZGS CD1) incomplete mid caudal vertebra (~50 mm)
Comments- Molnar (1980) described this vertebra as a probable theropod, further stating that "The proximal caudals of Poikilopleuron bucklandii ... closely approach this, with elevated transverse processes and an inclined spine located far posteriorly" unlike the less inclined neural spine in Elaphrosaurus and Allosaurus.  He believed "The Mangahouanga vertebra would represent a spine placed farther back than the P . bucklandii caudals, but otherwise are very similar having even the ventral sulcus", but stated "it is obvious that a single, incomplete vertebra is hardly a substantial basis for an identification, and although I think it unlikely, it is possible that the vertebra is of an ornithopod."  It was most recently briefly reviewed by Agnolin et al. (2010) who stated "This material is phylogenetically uninformative and is considered here as Theropoda indet."  Molina-Perez and Larramendi (2019) listed it under Megaraptora without rationale, although this would make sense biogeographically.  It is retained as Averostra here pending further study.
Lindsay's (2001) Spanish translation of his 1991 popular book states "Este hueso de la cola es suficiente para indicarnos que el dinosaurio Mangahouanga fue probablemente un predador, un terópodo" next to an illustration of NZGS CD1 in posterior view.  While the italicization and a naive reading might suggest "... the dinosaur Mangahouanga was ..." and thus qualify this as a nomen nudum, the reversed adjective-noun order in Spanish leads to a perfect translation of the original 1991 English version's sentence "This tailbone is enough to tell us that the Mangahouanga dinosaur was probably a predator, a theropod."  Indeed, Mangahouanga is correctly indicated as a locality on the New Zealand map next to the illustration with the specimen merely labeled "Theropod vertebra".  Thus Lindsay never intended Mangahouanga to be a genus name, and while the translator of the Spanish version or an editor apparently confused it for a genus name and italicized it, the text doesn't read as if it's a genus.  Thus the accidental italicization of a word would not count as a nomen nudum here, except that Molina-Perez and Larramendi (2019) explicitly listed ""Mangahouanga" (n.n.)" in their list of "Megaraptora similar to Megaraptor", referencing both NZGS CD1 and Molnar, 1980.  They say "its name was created by accident. Lambert 1983", but while the specimen was discussed on page 237 of that book as "Late Cretaceous creature from New Zealand's North Island" and "probably a theropod", it was never even accidentally named there and the Mangahouang site isn't even referenced.  Molina-Perez (pers. comm., 10-2021) indicates this was a mistake and he was thinking of Lindsay (2001), but this does make Molina-Perez and Larramendi (2019) the first reference to explicitly use "Mangahouanga" as a name, so they are the authors credited here.  It's not listed as "Lambert, 1983 vide Molina-Perez and Larramendi, 2019" because they never explicitly tie Lambert to the name, with their format more logically (though incorrectly) implying Lambert was the one to say its name was created by accident.  In any case "Mangahouanga" is a nomen nudum, as it was not stated to be new (ICZN Article 16.1- "Every new name published after 1999 ... must be explicitly indicated as intentionally new"), listed as a nomen nudum (Article 11.5- "a name must be used as valid for a taxon when proposed") and lacks a species (Article 13.3- " every new genus-group name published after 1930 ... must ... be accompanied by the fixation of a type species in the original publication"). 
References- Molnar, 1980. A dinosaur from New Zealand. In Cresswell and Vella (eds.). Gondwana Five: Selected Papers and Abstracts of Papers Presented at the Fifth International Gondwana Symposium. A. A. Balkema. 91-96.
Lambert, 1983. A Field Guide to Dinosaurs. Avon Books. 256 pp.
Lindsay, 1991. The Great Dinosaur Atlas. Dorling Kindersley Limited. 64 pp.
Lindsay, 2001. Atlas Visual de los Dinosaurios. Editoral Diana. 63 pp.
Agnolin, Ezcurra, Pais and Salisbury, 2010. A reappraisal of the Cretaceous non-avian dinosaur faunas from Australia and New Zealand: Evidence for their Gondwanan affinities. Journal of Systematic Palaeontology. 8(2), 257-300.
Molina-Perez and Larramendi, 2019. Dinosaur Facts and Figures: The Theropods and Other Dinosauriformes. Princeton University Press. 288 pp.

"Megalosaurus" dunkeri Dames, 1884
= Prodeinodon dunkeri (Dames, 1884) Ruiz-Omenaca and Canudo, 2003
Berriasian, Early Cretaceous
Obernkirchen Sandstein, Germany
Holotype- (UM 84; lost) tooth (60x22x? mm)
Comments- Naish (2011) reports the holotype is lost.
This species is based on a single tooth described by Dames (1884) and illustrated by Koken (1887), initially distinguished from Megalosaurus bucklandii in being more transversely compressed and lacking mesial serrations.
Note abundant additional material was referred to Megalosaurus dunkeri by Dollo (1909) and Lydekker (1888), then Altispinax dunkeri by Huene (1926), but has not been described in detail so cannot be compared to the holotypes of either. NHMUK 2559 and 2661 became the holotype and referred specimen of Megalosaurus oweni (Lydekker, 1889 and 1890 respectively), eventually separated as Valdoraptor. Most influential has been Huene's (1923) proposal of the genus Altispinax for "the species described as M. dunkeri by Lydekker (Dames)" ... "distinguished from Megalosaurus by its enormously high neural spines in the dorsal region" (referencing three high-spined dorsal vertebrae catalogd as NHMUK R1828), which was misunderstood by future authors as proposing a new genus for Dames' (1884) Megalosaurus dunkeri. After decades of both tooth and vertebrae being called Altispinax dunkeri, Paul (1888) formally separated the vertebrae as the species altispinax, resulting in the recent consensus of Altispinax dunkeri for the tooth and Olshevsky's 1991 new combination Becklespinax altispinax for the vertebrae. The issue was resolved by Maisch (2016), who found the ICZN supported Altispinax dunkeri Huene, 1923 as a taxon based on vertebrae different from Megalosaurus dunkeri Dames, 1884 based on the tooth (see Altispinax entry for details). Thus the German tooth is the only specimen that can be referred to Megalosaurus dunkeri. The Hastings Beds specimens contemporaneous with Altispinax are listed under that entry, while the Weald Clay (Belgium, England) and Lower Greensand (England) material is listed as Averostra here. Osi et al. (2010) referred two additional teeth from the Weald Clay.
Osi et al. (2010) found dunkeri to clade with "Megalosaurus" pannoniensis in a morphometric study, particularly when crown angle was compared to FABL. However, this was based on three teeth from the Weald Clay of England, not the holotype. Ruiz-Omenaca and Canudo (2003) proposed dunkeri was a species of Prodeinodon based on the false conclusion the mesial carina of the latter genus is unserrated, but it is actually serrated in both holotype and paratype (pers. obs.). The lack of mesial serrations in dunkeri may itself be due to wear.
References- Dames, 1884. Vorlegung eines Zahnes von Megalosaurus aus dem Wealden des Deisters. Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin. 1884, 186-188.
Koken, 1887. Die Dinosaurier, Crocodiliden und Sauropterygier des norddeutschen Wealden. Palaeontologische Abhandlungen. 3(5), 311-419.
Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Lydekker, 1889. On the remains and affinities of five genera of Mesozoic reptiles. Quarterly Journal of the Geological Society of London. 45, 41-59.
Lydekker, 1890. Contributions to our knowledge of the dinosaurs of the Wealden and the sauropterygians of the Purbeck and Oxford Clay. Quarterly Journal of the Geological Society of London. 46, 36-53.
Dollo, 1909. The fossil vertebrates of Belgium. Annals of the New York Academy of Sciences. 19(4), 99-119.
Huene, 1923. Carnivorous Saurischia in Europe since the Triassic. Bulletin of the Geological Society of America. 34, 449-458.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.
Paul, 1988. Predatory Dinosaurs of the World. Simon & Schuster, New York. 464 pp.
Olshevsky, 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings. 2, 196 pp.
Ruiz-Omenaca and Canudo, 2003. A new theropod dinosaur ("Prodeinodon" sp.) from the Lower Cretaceous of La Cantalera (Teruel, Spain). Geogaceta. 34, 111-114.
Osi, Apesteguia and Kowalewski, 2010. Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe. Cretaceous Research. 31(3), 304-320.
Naish, 2011. Theropod dinosaurs. In Batten (ed.). English Wealden Fossils. The Palaeontological Association. 526-559.
Maisch, 2016. The nomenclatural status of the carnivorous dinosaur genus Altispinax v. Huene, 1923 (Saurischia, Theropoda) from the Lower Cretaceous of England. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 280(2), 215-219.

"Megalosaurus" insignis Eudes-Delongchamps and Lennier vide Lennier, 1870
= Streptospondylus insignis (Eudes-Deslongchamps and Lennier vide Lennier, 1870) Depéret and Savornin, 1928
= Erectopus insignis (Eudes-Deslongchamps and Lennier vide Lennier, 1870) Stromer, 1931
Early Kimmeridgian, Late Jurassic
Saint-Adresse, Cap de La Hève, Haute-Normandie, France
Holotype- (Museum du Havre coll.) partial tooth (~120 mm)
Comments- The holotype tooth was first reported by Valenciennes (1863) as a megalosaur, then described as Megalosaurus insignis by Lennier (1870) and illustrated in Lennier (1887).
Sauvage (1874) referred four teeth from Fort de la Crèche (Musée de Boulogne coll.), three teeth from Portel (Beaugrand coll.), a sacral fragment and pedal ungual from Châtillon (Musée de Boulogne coll.) to Megalosaurus insignis.  Lennier (1887) referred a pedal phalanx and pedal ungual (both Museum du Havre coll.), but these are sauropodan (Carrano et al., 2012).  He also referred another supposed pedal phalanx (Museum du Havre coll.) and osteoderm (Poulain coll.), which are probably not theropod. Lydekker (1888) referred a tooth (NHMUK 46388) from the Kimmeridge Clay and another (NHMUK 35553a) from Ningle. Parent (1893) referred a pedal ungual (Lille Natural History Museum coll.) from Wimereux. Sauvage (1894) referred a pedal phalanx from Châtillon (Musée de Boulogne coll.), a tooth (Beaugrand coll.) from Moulin-Wibert, teeth from Mont-Lambert, teeth from Wimille, and remains from Pembel. Sauvage (1898) referred a tooth from the Oxfordian of Portugal. Lapparent (1943) referred seven teeth (MNHN coll.) from the Solvay Company quarry. Lapparent and Zbyszewski (1957) referred numerous specimens (mostly in the Geological Services Museum of Portugal coll.) from the Callovian-Tithonian of Portugal to M. insignis (including the holotype of Morosaurus marchei), much of the postcrania of which may not be theropod, with at least one caudal series being teleosaurian. As none of the theropod remains have been justified with shared derived characters, and the postcrania cannot be compared to the holotype, all of the material is here removed as Averostra indet. pending further study.
References- Valenciennes, 1863. D'une espèce de Chélonien fossile d'un genre nouveau, trouvé dans la craie du cap la Hève par M. Lennier, du Havre, et décrit par M. A. Valenciennes. Compte Rendu des Séances de l'Académie des Sciences. 46(8), 317-322.
Lennier, 1870. Études Géologiques et Paléontologiques sur l'Embouchure de la Seine et les Falaises de la Haute-Normandie [Geological and Paleontological Studies on the Mouth of the Seine and the Cliffs of Haute-Normandie]. Imprimerie Eugène Costey, Havre. 1-245.
Sauvage, 1874. Mémoire sur les dinosauriens et les crocodiliens des terrains jurassiques de Boulogne-sur-Mer [Memoir on the dinosaurs and crocodilians of the Jurassic deposits of Boulogne-sur-mer]. Mémoires de la Société Géologique de France, série 2. 10(2), 1-57.
Lennier, 1887. Études paléontologiques. Description des fossiles du Cap de la Hève. Bulletin de la Société Géologique de Normandie. 12, 17-98.
Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Parent, 1893. Le Wealdien du Bas-Boulonnais. Annales de la Societe Geologique du Nord. 21, 50-91.
Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.
Sauvage, 1898. Les Reptiles et les Poissons des terrains Mésozoïques du Portugal [The reptiles and fishes from the Mesozoic terrains of Portugal]. Bulletin de la Société Géologique de France, 3e série. 26, 442-446.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.
Depéret and Savornin, 1928. La faune de Reptiles et de Poissons albiens de Timimoun (Sahara algérien) [The Albian reptile and fish fauna of Timimoun (Algerian Sahara)]. Bulletin de la Societé Géologique de France, 4e série. 27, 257-265.
Stromer, 1931. Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. II. Wirbeltier-Reste der Baharîjestufe (unterstes Cenoman). 10. Ein Skelett-Rest von Carcharodontosaurus nov. gen. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-naturwissenschaftliche Abteilung, Neue Folge. 9, 1-23.
Lapparent, 1943. Les dinosauriens jurassiques de Damparis (Jura) [The Jurassic dinosaurs of Damparis (Jura)]. Mémoires de la Société Géologique de France (Nouvelle Série). Mémoire 21(47), 1-21.
Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.
Mateus, 1999. Upper Jurassic dinosaurs from Lourinhã and Portuguese dinosaur - with review of collecting in Laos. Geologisk Tidskrift. 1, 33-32.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

"Megalosaurus" lonzeensis Dollo, 1903
= Ornithomimus lonzeensis (Dollo, 1903) Kuhn, 1965
= Struthiomimus lonzeensis (Dollo, 1903) Glut, 1997
Santonian, Late Cretaceous
Glauconite of Lonzee, Belgium
Holotype- (Musée royal d'histoire naturelle de Belgique coll.) ungual
Comments- Dollo (1883) originally distinguished this ungual from a supposed Megalosaurus ungual from the Weald Clay because it had a less concave proximal articulation with a reduced median ridge, and lacked ventral striations. Although some authors such as Russell (1972) and Molnar (1990) have stated Dollo named the species in his 1883 paper describing the holotype, he only referred to it as the "dinosaurien carnivore de Lonzee". He later (1903) named it as a new species of Megalosaurus, M. lonzeensis. Huene (1923) considered the specimen an ornithomimid without specifying why, labeling it Ornithomim.gen.Belgium in his phylogram. In 1926, Huene referred to the taxon as Ornithomimidorum gen. A, which has been interpreted as a genus name by some authors (e.g. Glut, 1997). Yet it is only the Latinized way of saying "ornithomimid genus A", to indicate Huene thought a new ornithomimid genus was necessary for lonzeensis, but did not wish to name it. Kuhn (1965) formally transferred the species to Ornithomimus. Russell (1972) considered Megalosaurus lonzeensis an indeterminate possible ornithomimid, but without published reasons. Molnar (1989 pers. comm. to Glut, 1997) believed it was not an ornithomimid, however. Glut (1997) incorrectly stated the species had been renamed ?Struthiomimus lonzeensis, but that combination doesn't appear in any prior work. Carrano et al. (2012) considered it a coelurosaur manual ungual based on "small size, mediolaterally narrow dimensions and details of the vascular traces."
If the specimen is a pedal ungual, it is most probably from a basal coelurosaur or paravian, as other theropods have pedal unguals which are less curved and broader. Among manual unguals, it resembles Masiakasaurus most closely, as other theropods' are generally deeper and more strongly curved. Of Carrano et al.'s coelurosaur-like features, noasaurids are also small and have mediolaterally compressed unguals (though the amount has not been reported), though the blood groove is deeper proximally and more ventral distally in Masiakasaurus. Traditional megalosaurids like Poekilopleuron and Dubreuillosaurus are similar to other theropods in these aspects. Ornithomimosaur pedal unguals are straight and broader, and further differ in having lateral and medial 'spurs' instead of a flexor tubercle. Ornithomimosaur manual unguals differ in having a distally placed flexor tubercle (except the deep, highly curved unguals of Deinocheirus). They are also characteristic in having a transversely expanded area ventral to the vascular grooves which ends far from the proximal end of the ungual. This is not seen in "Megalosaurus" lonzeensis. These comparisons indicate the taxon is neither a basal tetanurine nor an ornithomimosaur, but may be a noasaurid manual ungual or a deinonychosaur pedal ungual III or IV.
References- Dollo, 1883. Note sur les restes de dinosauriens rencontrés dans le Crétacé supérieur de la Belgique [Note on the dinosaur remains found in the Upper Cretaceous of Belgium]. Bulletin du Musée Royal d'Histoire Naturelle de Belgique. 2, 205-221.
Dollo, 1903. Les dinosauriens de la Belgique. Comptes Rendus de l' Académie des Sciences de Paris. 136, 565-567.
Huene, 1923. Carnivorous Saurischia in Europe since the Triassic. Bulletin of the Geological Society of America. 34, 449-458.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous Formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.
Kuhn, 1965. Saurischia (Supplementum 1). In Fossilium Catalogus 1. Animalia. 109, 1-94.
Russell, 1972. Ostrich dinosaurs from the Late Cretaceous of western Canada. Canadian Journal of Earth Sciences. 9(4), 375-402.
Molnar, 1990. Problematic Theropoda: "Carnosaurs". In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press, Berkeley, Los Angeles, Oxford. 306-317.
Glut, 1997. Dinosaurs - The Encyclopedia. McFarland Press. 1076 pp.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

Megalosaurus? monasterii (Muenster, 1836) Windolf, 1997
= Saurocephalus monasterii Muenster, 1836
Oxfordian, Late Jurassic
Korallenkalk Formation, Hanover, Germany
Holotype- tooth
Comments- Originally referred to the saurodontid fish genus Saurocephalus by Muenster (1846), Windolf (1997, 1998) recognized it as theropod and used the new combination Megalosaurus monasterii. Carrano et al. (2012) stated the tooth could not be identified past Theropoda indet..
References- Muenster, 1836. Ueber die im Korallenkalk das Lindner Berges bei Hannover vorkommenden Ueberreste von Fischen, mit Beschreibung und Abbildung einiger neuen Arten [On the remains of fishes occurring in the Coral Chalk of Lindner Mountain in Hannover, with description and images of some new forms]. in Muenster and Wissman (eds.). Beitrage zur Petrefacten-Kunde. 7, 36-50.
Windolf, 1997. Theropoden-Zahne aus dem Oberen Jura Niedersachsens [Theropod teeth from the Upper Jurassic of Niedersachsen]. In Sachs, Rauhut and Weigert (eds.). Terra Nostra. 1. Treffen der deutschsprachigen Paläoherpetologen. Extended Abstracts. Duesseldorf, Germany. 33-34.
Windolf, 1998. Dinosaurierfunde in Niedersachsen [Dinosaur finds in Lower Saxony]. Arbeitskreis Paläontologie Hannover. 26, 1-7.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

"Megalosaurus" pombali Lapparent and Zbyszewski, 1957
Callovian-Oxfordian, Middle-Late Jurassic
Pombal, Leiria, Portugal
Syntype- (Faculty of Sciences of Lisbon coll.?; suggested lectotype) incomplete tooth
Middle-Late Jurassic
Ribamar, Portugal
Syntype- ?(Faculty of Sciences of Lisbon coll.?) tooth
Late Kimmeridgian-Early Tithonian, Late Jurassic
Lourinha Formation, Portugal
Syntype- ?(Faculty of Sciences of Lisbon coll.?) incomplete tooth (~110 mm)
Kimmeridgian, Late Jurassic
Torrinha (Batalha), Portugal
Syntype- ?(Faculty of Sciences of Lisbon coll.?) anterior dorsal vertebra (90 mm)
Late Kimmeridgian, Late Jurassic
Porto de Barcas, Alcobaca Formation, Portugal
Syntypes- ?(Faculty of Sciences of Lisbon coll.) partial anterior dorsal vertebra (85 mm), partial proximal caudal vertebra (75 mm)
?(MG coll.) two mid caudal vertebrae (160 mm), two mid caudal vertebrae (120, 130 mm)
Comments- Megalosaurus pombali was founded on several different specimens from numerous localities in Middle-Late Jurassic Portugal. Lapparent and Zbyszewski (1957) distinguished it from M. insignisby its larger size (untrue), greater labiolingual thickness, and mesial carina restricted to the apical third. The vertebrae are supposedly united by their strong transverse and ventral constriction. As these characters have yet to be compared to the wide variety of generic averostran teeth now known, they are unlikely to be diagnostic, and the remains could be from multiple taxa. No lectotype has been selected, but the tooth from Pombal is the obvious choice given the tooth-based diagnosis and the species' etymology.  Mocho et al. (2016) referred several of the syntype vertebrae to Sauropoda- MG 4811 from Albergaria dos Doze to Sauropoda indet.; and MG 4819, 4821 and 4826 ("A vertebra broken in two but entirely of the same type, although slightly smaller") from Port de Barros to Diplodocinae indet..  Mocho et al. (2017) found the syntype supposed "very powerful posterior dorsal (Pl. XIII, fig. 31, 32, 33) whose face has a somewhat less triangular shape (Torres Vedras Museum)" (MMLT 602528) is a proximal caudal vertebra of Sauropoda indet..
References- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.
Mocho, Royo-Torres, Malafaia, Escaso and Ortega, 2016. Systematic review of Late Jurassic sauropods from the Museu Geológico collections (Lisboa, Portugal). Journal of Iberian Geology. 42, 227-250.
Mocho, Royo-Torres, Escaso, Malafaia, de Miguel Chaves, Narváez, Pérez-García, Pimentel, Silva and Ortega, 2017. Upper Jurassic sauropod record in the Lusitanian Basin (Portugal): Geographical and lithostratigraphical distribution. Palaeontologia Electronica. 20.2.27A: 1-50.

Megalosaurus? "tibetensis" Zhao, 1985
Early Jurassic
Middle Daye Group, Tibet, China
Material- (IVPP coll?)
Comments- This specimen was discovered in 1976 (An et al., 2021) and first reported by Zhao (1983) who while discussing the evolution of dinosaurs in China noted "primitive carnosaurs (Megalosaurus Buckland)" in the Early Jurassic. It might be surmised Zhao was referring to an undescribed Chinese specimen of Megalosaurus, which is strengthened by the later mention of a new Megalosaurus species from the same deposits as other Early Jurassic taxa Zhao mentions (Lufengosaurus? "changduensis", "Damalasaurus", ?Scelidosaurus). As with other new Tibetan taxa listed by Zhao (1983), it was probably supposed to be described by Zhao in the published version of his doctoral dissertation "The Mesozoic vertebrate remains of Xizang (Tibet), China", in the second Palaeontology of Xizang volume. Yet this volume is only referenced by Zhao (1983; which was submitted in September 1981) and seems never to have been printed, though the previous volume was published by the IVPP in 1980 and the third by the NIGP in 1981. Olshevsky (DML, 1999) notes the IVPP rejected the paper as unpublishable. Zhao (1985) and Zhao and Cheng (1985) list the new species Megalosaurus tibetensis from the Early Jurassic Middle Daye Group of Qamdo, Tibet. It is listed as undescribed ?megalosaurid from the Early Jurassic Daye Group of Xizang Zizhiqu by Weishampel (1990). Zhang and Li (1997) list this theropod as being from the Middle Daye Formation of Daye, Qamdo County, Xizang. The Daye Formation itself seems to be Early Triassic, so a referral to a Daye Group seems more likely. Weishampel et al. (2004) list it as undescribed theropod from the Daye Group of Xizang. It is listed as the megalosaurid Megalosaurus tibetensis Zhao sp. nov. (MS) in Fang et al. (2006), suggesting Zhao's monograph was indeed never published and is still a manuscript. It is probably not referrable to Megalosaurus based on the older age, but has not been described or figured so remains a nomen nudum.
References- Zhao, "1983" [unpublished]. The Mesozoic vertebrate remains of Xizang (Tibet), China. The Series of the Scientific Expeditions to the Qinghai-Xizang Plateau. Palaeontology of Xizang. 2, 1-200.
Zhao, 1983. Phylogeny and evolutionary stages of Dinosauria. Acta Palaeontologica Polonica. 28(1-2), 295-306.
Zhao, 1985. The Jurassic Reptilia. In Wang, Cheng and Wang (eds.). The Jurassic System of China. Stratigraphy of China. 11, 286-289, 347, plates 10 and 11.
Zhao and Cheng, 1985. The Qamdo-Simao Subregion. In Wang, Cheng and Wang (eds.). The Jurassic System of China. Stratigraphy of China. 11, 174-179.
Weishampel, 1990. Dinosaurian distribution. In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press. 63-139.
Zhang and Li, 1997. Mesozoic Dinosaur Localities in China and Their Stratigraphy. In Wolberg, Sump and Rosenberg (eds.). Dinofest International, Proceedings of a Symposium sponsered by Arizona State University. A Publication of The Academy of Natural Sciences. 265-273.
Olshevsky, DML 1999. https://web.archive.org/web/20200720012936/http://dml.cmnh.org/1999Nov/msg00507.html
Weishampel, Barrett, Coria, Le Loeuff, Xu, Zhao, Sahni, Gomani and Noto, 2004. Dinosaur Distribution. In Weishampel, Dodson and Osmolska (eds.). The Dinosauria Second Edition. University of California Press. 517-606.
Fang, Zhang, Lu, Han, Zhao and Li, 2006. Collision between the Indian Plate and the paleo-Asian late and the appearance of Asian dinosaurs. Geological Bulletin of China. 25(7), 862-873.
An, Wang, Li, Wang and Wang, 2021. New discovery of Jurassic dinosaur fossils in Chaya area, Qamdu district, Tibet. Geological Bulletin of China. 40(1), 189-193.

"Ornithocheirus" hilsensis Koken, 1883
Berriasian, Early Cretaceous
Obernkirchen Sandstein, Germany
Holotype- distal pedal phalanx II-2 (~105-145 mm)
Diagnosis- Indeterminate within Averostra.
Comments- Koken (1883) originally identified this as a distal metacarpal IV belonging to the pterosaur genus Ornithocheirus. Meyer and Dames (1884) disagreed, noting that in pterosaurs the distal condyles are much larger than the shaft and that the sides do not have ligament pits. Meyer further believed "O." hilsensis' bone was pneumatic, which he viewed as similar to theropods. Koken and Kayser (1885) replied, stating the morphology could still be congruent with a pterosaurian identity. Williston (1885, 1886) firmly supported a theropod identity, based on his observations of material at the YPM.
Based on Koken's (1883) figure, the specimen is the distal half of a theropod left pedal phalanx II-2. It is 59 mm long as preserved, probably ~105-145 mm when complete based on proportions in other taxa. It is 32.3 mm broad with condyles 37 mm tall. The articular surface is deeply ginglymoid, with both extensor and flexor grooves, the latter more extensive. There is a slight extensor pit. The lateral condyle is broader than the medial condyle and slightly higher in distal view, though both are equal in distal and ventral extent. The condyles are more pointed dorsodistally than ventrodistally and possess large ligament pits on both sides.
It can be identified as pedal phalanx II-1 because other phalanges are either more transversely flared distally (making their distal profiles wide) and/or more stout. Mayer and Dames were correct to note it strongly differs from pterosaurs such as Pteranodon in having smaller condyles which have prominant ligament pits. These condyles are also slightly dorsally displaced, unlike the strongly ventrally displaced condyles in Pteranodon. It is extremely similar to such taxa as Majungasaurus and Neovenator. The size is much larger than nearly all coelurosaurs except tyrannosauroids, meaning it is unlikely to belong to this clade, and it does not show the dorsally displaced ligament pits of dromaeosaurids. It may be from any variety of large theropod (neoceratosaur, megalosauroid, carnosaur, tyrannosauroid) and shows no distinctive characteristics, leaving it a nomen dubium.
References- Koken, 1883. Die Reptilien der norddeutschen unteren Kreide. Zeitschrift der deutschen Geologischen Gesellshaft. 35, 735-827.
Meyer and Dames, 1884. Ueber Ornithocheirus hilsensis Koken und über Zirkonzwillinge. Zeitschrift der deutschen Geologischen Gesellshaft. 36, 664-665.
Koken and Kayser, 1885. Über Ornithocheirus hilsensis, Koken. Zeitschrift der deutschen Geologischen Gesellshaft. 37, 214-215.
Williston, 1885. Uber Ornithocheirus hilsensis, Koken. Zoologischer Anzeiger. 8, 628-629.
Koken, 1886. Ueber Ornithocheirus hilsensis Koken. Zoologischer Anzeiger. 9, 21-23.
Williston, 1886. Über Ornithocheirus hilsensis Koken. Zoologischer Anzeiger. 9, 282-283.
Dames, 1886. [Comments on Meyer and Dames 1884, Koken and Kayser 1885, Williston 1885, Koken 1886 and Williston 1886]. Neues Jahrbuch fur Mineralogie, Geologie und Palaeontologie. 1886(3), 113-114.

Orthogoniosaurus Das-Gupta, 1931
O. matleyi Das-Gupta, 1931
Late Maastrichtian, Late Cretaceous
Lameta Formation, India
Holotype- (GI coll.) posterior tooth
Comments- The type tooth of Orthogoniosaurus matleyi was discovered in 1924.
References- Das-Gupta, 1931. On a new theropod dinosaur (Orthogoniosaurus matleyi, n. gen. et n. sp.) from the Lameta beds of Jubbulpore. Journal and Proceedings of the Asiatic Society of Bengal. 26, 367-369.
Huene and Matley, 1933. The Cretaceous Saurischia and Ornithischia of the Central Provinces of India. Memoirs of the Geological Survey of India. Palaeontologica Indica. 21, 1-72.
Romer, 1956. Osteology of the Reptiles. University of Chicago Press. 772 pp.
Walker, 1964. Triassic reptiles from the Elgin area: Ornithosuchus and the origin of carnosaurs. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences. 248, 53-134.
Romer, 1966. Vertebrate Paleontology, 3rd edition. University of Chicago Press, Chicago. 468 pp.
Molnar, 1990. Problematic Theropoda: "Carnosaurs". In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press. 306-317.
Glut, 1997. Dinosaurs - The Encyclopedia. McFarland Press. 1076 pp.
Tykoski and Rowe, 2004. Ceratosauria. In Weishampel, Dodson and Osmolska (eds.). The Dinosauria Second Edition. University of California Press. 47-70.

Orthogoniosaurus? rawesi (Lydekker, 1890) Olshevsky, 1991
= Massospondylus rawesi Lydekker, 1890
= Megalosaurus rawesi (Lydekker, 1890) Vianey-Liaud, Jain and Sahni, 1987
Late Maastrichtian, Late Cretaceous
Takli Formation, India
Holotype- (NHMUK R4190) tooth
Comments- Considered non-dinosaurian by Galton (pers. comm. to Glut, 1989, in Glut 1997). However, Carrano et al. (2012) considered it theropod and noted the fine serrations and stout proportions resembled abelisaurids.
References- Lydekker, 1890. Note on certain vertebrate remains from the Nagpur District. Records of the Geological Survey of India. 23, 20-24.
Vianey-Liaud, Jain and Sahni, 1987. Dinosaur eggshells (Saurischia) from the Late Cretaceous intertrappeans and Lameta Formation (Deccan, India). Journal of Vertebrate Paleontology. 7(4), 408-424.
Olshevsky, 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings. 2, 196 pp.
Glut, 1997. Dinosaurs - The Encyclopedia. McFarland Press. 1076 pp.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

Ozraptor Long and Molnar, 1998
= "Austroraptor" Pigdon, DML 1997
O. subotaii Long and Molnar, 1998
Bajocian, Middle Jurassic
Colalura Sandstone, Western Australia, Australia
Holotype- (UWA 82469) (~1.6-2 m) distal tibia (~170-200 mm, 40 mm wide)
Other diagnoses- The diagnostic characters listed by Long and Molnar (1998) (high rectangular ascending process with straight dorsal margin; centrally placed vertical ridge in astragalar facet; weakly developed medial condyle) are also found in at least Velocisaurus and Austrocheirus. However, differences in the extent and width of the central ridge and other features may provide a valid diagnosis with further study.
Comments- This was originally found in 1967 and identified as chelonian by the NHMUK. It was later repared and reidentified as theropod by Long in 1990s. Rauhut (2005) noted Ozraptor shared a centrally placed vertical ridge in the astragalar facet with unnamed Tendaguru abelisauroid MB R 1750, so referred it to that clade. More recently, Rauhut (2012) found that non-ceratosaurs such as Chuandongocoelurus, Aerosteon and Juratyrant also have well-developed ridges, with fainter ridges present in several coelurosaurs. Furthermore, Rajasaurus, Majungasaurus, Pycnonemosaurus, Quilmesaurus and Masiakasaurus lack the ridge, leaving it only known in Velocisaurus and Austrocheirus among named ceratosaurs. Rauhut (2012) placed Ozraptor in Theropoda indet., but here it is in Averostra incertae sedis pending further study, as no non-averostrans survived until the Middle Jurassic or have tall astragalar ascending processes.
References- Pigdon, DML 1997. https://web.archive.org/web/20191030133231/http://dml.cmnh.org/1997Sep/msg00942.html
Long and Molnar, 1998. A new Jurassic theropod dinosaur from Western Australia. Records of the Western Australian Museum. 19(1), 221-229.
Rauhut, 2005. Post-cranial remains of 'coelurosaurs' (Dinosauria, Theropoda) from the Late Jurassic of Tanzania. Geological Magazine. 142(1), 97-107.
Ezcurra and Agnolin, 2012. An abelisauroid dinosaur from the Middle Jurassic of Laurasia and its implications on theropod palaeobiogeography and evolution. Proceedings of the Geologists' Association. 123(3), 500-507.
Rauhut, 2012. A reappraisal of a putative record of abelisauroid theropod dinosaur from the Middle Jurassic of England. Proceedings of the Geologists' Association. 123(5), 779-786.

Paraxenisaurus Serrano-Brañas, Espinosa-Chávez, Maccracken, Gutiérrez-Blando, de León-Dávila and Ventura, 2020
P. normalensis Serrano-Brañas, Espinosa-Chávez, Maccracken, Gutiérrez-Blando, de León-Dávila and Ventura, 2020
Late Campanian, Late Cretaceous
Cerro del Pueblo Formation, Mexico
Holotype- (BENC 2/2-001) partial astragalocalcaneum, proximal phalanx I-1(?), partial metatarsal II, phalanx II-1 (115 mm), proximal phalanx II-2(?), proximal  metatarsal III(?), distal metatarsal III, proximal phalanx III-3(?), distal metatarsal IV(?), phalanx IV-1 (104 mm), phalanx IV-3 (67 mm), phalanx IV-4 (45 mm), partial pedal ungual IV
Diagnosis- (after Serrano-Brañas et al., 2020) non-arctometatarsalian pes, where proximal end of metatarsal III is expanded and has a proximally ovoid outline (also in abelisaurids); medial condyle of metatarsal II flares strongly medially; distinctively broad pedal unguals (also in abelisaurids).
(proposed) posterior surface of distal quarter of metatarsal II with deep groove for m. flexor digitorum longus II tendon.
Other diagnoses- Many proposed apomorphies of Paraxenisaurus are only scorable in paratype specimens, which cannot be referred to the taxon as they lack diagnostic comparable material. 
The following are only scorable in BENC 1/2-0054- strongly curved and transversely compressed manual ungual I that has distally placed flexor tubercle divided by deep sulcus; deeply concave proximal articular surface of manual ungual I, which is twice taller than wide, giving it an elliptical outline; metacarpal III that has an expanded proximal articular end, similar in width with that of metacarpal II.  The following are only scorable in BENC 1/2-0092- distal caudal vertebrae in which dorsoventrally low prezygapophyses with nearly vertical articular surfaces are found on the more proximal caudals, and prezygapophyses that face ventromedially are found on the most distal caudals. 
Of the other proposed characters, the supposed attachment site for metatarsal I on metatarsal II is actually a groove for the m. flexor digitorum longus II tendon, which Serrano-Branas et al. confused for the raised scar for the m. gastrocnemius pars medialis in e.g. Garudimimus, which is also present Gallimimus so was not related to metatarsal I.  Metatarsal I actually lacks an obvious attachment site on metatarsal II in non-bird theropods.  "Distal end of metatarsal III is wider transversely than anteroposteriorly and has a semi-ginglymoid articular surface" is true of most theropods.
Of supposed diagnostic pedal ungual characters, ventral curvature is plesiomorphic and ventral angling with the proximal end held vertically is common in theropods and present in e.g. Garudimimus and Beishanlong.  The proximodorsal process "changing its position" is using a difference between paratype 30/2-001's mostly horizontal processes and the intended holotype's more vertical process as a character, which presupposes they are the same taxon.  The ventral fossa surrounding a ridge-like flexor tubercle is also present in Harpymimus, Garudimimus, Beishanlong and large Dinosaur Park ornithomimid unguals (NMC 1349, RTMP 1967.19.145) and is not shown in the intended holotype but is claimed to be "partially broken."  This leaves the medial foramen, which might be a valid character in paratype ungual III and holotype ungual IV (paratype ungual II is damaged in that area), but might also be taphonomic, as there are many other small circular areas of damage (e.g. center of proximal surface of ungual IV).  While the two unguals in 30/2-001 are similar to each other, that of the intended holotype is more strongly curved, has that smaller more dorsally angled proximodorsal process, is wider in proximal view, and lacks the expanded ventral half characteristic of ornithomimosaurs that is present in the other specimen.
Comments- The material was discovered in the 1990s and described in a pre-print released online on April 24 2020.  As this was electronic and had no mention of ZooBank, it was a nomen nudum (ICZN Article 8.5.3. states names published electronically must "be registered in the Official Register of Zoological Nomenclature (ZooBank) (see Article 78.2.4) and contain evidence in the work itself that such registration has occurred") until August 2020 when that issue was published physically.
Serrano-Branas et al. (2020) referred four paratype specimens to Paraxenisaurus from different localities in the same formation- BENC 1/2-0054 consists of several manual fragments, BENC 1/2-0092 is several distal caudal vertebrae, BENC 30/2-001 is two pedal unguals, and BENC 1/2-0091 consists of three forelimb fragments, a distal femur and distal metatarsal.  The latter element is supposed to be a metatarsal IV, which shares no apparent characters with the distal metatarsal in the holotype.  The pedal unguals of 30/2-001 differ from the type ungual in several characters besides a supposed medial foramen in one, which may be taphonomic (see Other diagnoses above).  These specimens are all placed in Ornithomimidae on this website.
The authors recovered Paraxenisaurus in Deinocheiridae with Garudimimus using the coelurosaur matrix of Choiniere, but this dataset is plagued by numerous misscorings.  Worse yet, most of the authors' reported deinocheirid synapomorphies don't actually match scorings in their matrix, suggesting systemic error.  For instance, of the supposed deinocheirid synapomorphies present in the holotype- "an astragalus with indistinct or poorly separated condyles" and "a dorsoventrally thicker shaft of metatarsal IV in cross-section" are present in all scored ornithomimosaurs and indeed most Mesozoic tetanurines; "a less broad and well-rounded distal end of femur" is an averostran character again present in most taxa and all ornithomimosaurs; "the presence of anteroposteriorly short pedal phalanges of digit IV, with proximal and distal articular surfaces very close together" is scored as true in all ornithomimosaurs (and abelisaurs and tyrannosaurines among other taxa).  Only "the presence of a rectangular cross-section of metatarsal III" and "a ventrally concave shape in lateral view of the ventral surface of pedal unguals" would resolve as joining Paraxenisaurus with Deinocheirus in their matrix, but are also both plesiomorphies found in e.g. abelisaurs.  The final character, "a distally-placed metatarsal I attached to the distal quarter of metatarsal II", is misinterpreted in Paraxenisaurus as detailed above and is also scored as true for almost all tetanurines in their matrix, so wouldn't resolve as a deinocheirid character in any case. 
Among material in the intended holotype, the supposed proximal end of manual phalanx II-2 or III-3 is very poorly preserved but matches the size and morphology of a pedal phalanx I-1, which would make more sense preservationally as the rest of the material is from the distal hindlimb.  If the specimen is an abelisaurid, this would also eliminate the objection that their manual elements are far more robust than this.  Metatarsal fragments are all very poorly preserved, with only the distal end of III being obviously identifiable, though two of the other fragments are distal metatarsals.  The supposed proximal end of metatarsal III is particularly broken, and interpreted by Serrano-Branas et al. as being oval in a strictly extensor-flexor axis unlike any other theropod.  Most Late Cretaceous theropods had transversely compressed metatarsal III proximal outlines, even carcharodontosaurids and Deinocheirus.  In addition, these and the wider therizinosauroids have a rectangular shape in proximal view.  The only contemporaneous theropods with similar outlines are abelisaurids like Majungasaurus, if the long axis is tilted posteromedially and a medial tip is added.  The pedal ungual is broader than carcharodontosaurids and coelurosaurs, but comparable to abelisaurids.  If added to Hartman et al.'s maniraptoromorph matrix, it emerges as a ceratosaur closest to Aucasaurus as far as taxa with well preserved feet are concerned, but that matrix also doesn't include characters particular to ceratosaurs and isn't great with pedal characters in general.  Ceratosaurs are also unknown from Cretaceous North America, though the idea of an abelisaurid making its way from South America to Mexico isn't completely beyond plausibility.  Still, I would place the specimen as Averostra incertae sedis pending a better description of the tarsus and of the real bone surfaces on supposed proximal metatarsal III.
References- Serrano-Brañas, Espinosa-Chávez, Maccracken, Gutiérrez-Blando, de León-Dávila and Ventura, 2020. Paraxenisaurus normalensis, a large deinocheirid ornithomimosaur from the Cerro del Pueblo Formation (Upper Cretaceous), Coahuila, Mexico. Journal of South American Earth Sciences. 101, 102610.

"Prodeinodon" kwangshiensis Hou, Yeh and Zhao, 1975
Aptian, Early Cretaceous
Xinlong Formation, Guangxi, China
Syntypes- (IVPP V4795) tooth (73x28x13 mm), three teeth
Referred- ?(NP01) tooth (Amoit et al., 2010)
?(NP02) tooth (Amoit et al., 2010)
?(NP06) tooth (Amoit et al., 2010)
? teeth (Mo et al., 2015)
Comments- This taxon was discovered in 1973 and described as a new species of Prodeinodon by Hou et al. (1975), though the paper has yet to be translated from Chinese. Thus the rationale for referring kwangshiensis to Prodeinodon, the purported diagnostic characters, and the descriptive details remain unknown to Western authors. Note the Xinlong Formation used to be called the Napai Formation (Mo et al., 2015). One of the four teeth described by Hou et al. is ~25-45% larger than the others, so may belong to a different individual and make the hypodigm more correctly termed syntypes than a holotype. Okazaki (1992) proposed kwangshiensis might be referrable to Wakinosaurus based on the high labiolingual compression and rather straight distal edge. Mo et al. (2014) noted kwangshiensis differs from the Xinlong carcharodontosaurid tooth NHMG 10858 in being smaller, more elongate (height/FABL ratio 2.61 vs. 1.92), having apically angled distal serrations, and lacking longitudinal ridges along the distal edge. Yet the size and elongation are more variable in e.g. Tyrannosaurus, so these may not be important factors. Mo et al. (2016) stated "teeth generally similar to those described by Hou, Yeh & Zhao (1975) are fairly common in the Xinlong Formation", illustrating an example as a carcharodontosaurid. kwangshiensis may end up being a carcharodontosaurid, and/or could be synonymous with Datanglong from the same formation.
References- Hou, Yeh and Zhao, 1975. Fossil reptiles from Fusui, Kwangshi. Vertebrata PalAsiatica. 13(1), 24-33.
Okazaki, 1992. A new genus and species of carnivorous dinosaur from the Lower Cretaceous Kwanmon Group, northern Kyusyu. Bulletin of the Kitakyushu Museum of Natural History 11, 87-90.
Amiot, Buffetaut, Lecuyer, Wang, Boudad, Ding, Fourel, Hutt, Martineau, Medeiros, Mo, Simon, Suteethorn, Sweetman, Tong, Zhang and Zhou, 2010. Oxygen isotope evidence for semiaquatic habits among spinosaurid theropods. Geology. 38, 139-142.
Mo, Huang, Xie and Buffetaut, 2014. A megatheropod tooth from the Early Cretaceous of Fusui, Guangxi, southern China. Acta Geologica Sinica (English Edition). 88(1), 6-12.
Mo, Buffetaut, Tong, Amiot, Cavin, Cuny, Suteethorn, Suteethorn and Jiang, 2016 (online 2015). Early Cretaceous vertebrates from the Xinlong Formation of Guangxi (southern China): A review. Geological Magazine. 153(1), 143-159.

Prodeinodon Osborn, 1924
P. mongoliensis Osborn, 1924
Early Cretaceous
Huhteeg Svita (=Oshih Formation), Mongolia
Holotype- (AMNH 6265) partial tooth
Paratype- (AMNH 6531) tooth (47 mm)
Referred- ? maxillary tooth, fragmentary tibia (~1 m; lost), fragmentary fibula (~1 m; lost) (Bohlin, 1953)
References- Osborn, 1924. Sauropoda and Theropoda of the Lower Cretaceous of Mongolia. American Museum Novitates. 128, 1-7.
Bohlin, 1953. Fossil reptiles from Mongolia and Kansu. Reports from the Scientific Expedition to the North-Western Provinces of China Under Leadership of Dr Sven Hedin. The Sino-Swedish Expedition. Publication 37(6), 113 pp.

Szechuanosaurus Young, 1942
Not Szechuanosaurus- Camp (1935) described a fragmentary specimen UCMP 32102 from the middle Chongqing Group of Rongxian (= Jung-Hsien), Sichuan as Megalosauridae gen. et sp. indet., but Young (1942) later wrote "The general structure of [Szechuanosaurus campi syntype] V236 with the way of serrations fits so well with the Junghsien tooth, we feel that there is practically no doubt in regarding them as identical" "and prefer to consider the Junghsien tooth as belonging also to the new form" Szechuanosaurus.  This despite previously stating UCMP 32102 "is bigger and straighter than all" Szechuanosaurus syntype teeth.  Compared to Szechuanosaurus, UCMP 32102 is indeed larger (~69 vs. ~32 and ~47 mm), with a much greater crown height/base ratio (~314% vs. ~224% and ~267%), making it less tapered.  UCMP 32102 is different from the Szechuanosaurus syntypes and is considered Averostra incertae sedis here.
Dong et al. (1978) list Szechuanosaurus "yandonensis" as a new species in a faunal list of taxa from the Wujiaba quarry of the Shangshaximiao Formation. There is no description or illustration, making this a nomen nudum. In 1983, Dong et al. note there was only a single large theropod skeleton in the Wujiaba quarry, CV 00214, described by them as a neotype of Szechuanosaurus campi. It can be implied that Dong et al. originally believed CV 00214 to be a new species of Szechuanosaurus, but later decided to include it in S. campi. Note that Dong et al.'s attempt at a neotype designation is invalid, as the ICZN requires the original type(s) to be lost or destroyed (Article 75.3.4) and that the new specimen "came as nearly as practicable from the original type locality" (Article 75.3.6) whereas CV 00214 is from a different stratigraphic group than Szechuanosaurus' types and at least one Szechuanosaurus campi syntype still exists (Wu et al., 2020). To make CV 00214 a neotype merely due to the suggested undiagnosability of S. campi's syntypes would require an ICZN petition (Article 75.5).  Carrano et al. (2012) found CV 00214 to be sister to Yangchuanosaurus shangyouensis in their analysis and referred it to that species.
He (1984) briefly described a series of remains ("many carnosaur specimens, including many teeth, cervical vertebrae, dorsal vertebrae, more than forty caudal vertebrae, complete ischium, femur, tibia and fibula, as well as relatively complete humerus, coracoid and claws" [translated]) from the Shangshaximiao Formation of Hexi Commune, Sichuan.  He referred these to Szechuanosaurus campi because the syntypes were also found in the suburbs of Guangyuan and believed to be from the Shangshaximiao Formation based on faunal similarities and fossil abundance, "there is no significant difference in shape and size" between S. campi and the Hexi teeth, and "there is no evidence of the existence of two or more carnosaurs" from that horizon.  However, the teeth of S. campi have not been shown to be diagnostic within e.g. Metriacanthosauridae, multiple taxa with megalosaur-grade teeth are now known from the Shangshaximiao (Leshansaurus, Yangchuanosaurus shangyouensis, Sinraptor hepingensis), and S. campi itself may be from the Penglaizhen Formation or slightly lower Shuining Formation instead.
Gao (1993) described ZDM 9011 (and three incomparable referred specimens) from Dashanpu in the Xiashaximiao Formation as Szechuanosaurus zigongensis based on a number of characters shared with CV 00214 and He's Hexi Commune tetanurine material that are largely symplesiomorphies.  Notably, the only preserved teeth in S. zigongensis are in the referred specimens ZDM 9012 and 9013, so the type isn't even comparable to S. campi.  Carrano et al. (2012) found zigongensis to be sister to Yangchuanosaurus shangyouensis instead and renamed it Yangchuanosaurus zigongensis.
References- Camp, 1935. Dinosaur remains from the province of Szechuan. University of California Publications, Bulletin of the Department of Geological Sciences. 23(14), 467-471.
Young, 1942. Fossil vertebrates from Kuangyuan, N. Szechuan, China. Bulletin of the Geological Society of China. 22(3-4), 293-309.
Dong, Zhang, Li and Zhou, 1978. [A new carnosaur discovered in Yongchuan, Sichuan]. Chinese Science Bulletin. 23(5), 302-304.
Dong, Zhou and Zhang, 1983. Dinosaurs from the Jurassic of Sichuan. Palaeontologica Sinica. Whole Number 162, New Series C, 23, 136 pp.
He, 1984. The Vertebrate Fossils of Sichuan. Sichuan Scientific and Technical Publishing House, Chengdu, Sichuan. 168 pp.
Gao, 1993. A new species of Szechuanosaurus from the Middle Jurassic of Dashanpu, Zigong, Sichuan. Vertebrata PalAsiatica. 31(4), 308-314.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.
Wu, Shi, Dong, Carr, Yi and Xu, 2020 (online 2019). A new tyrannosauroid from the Upper Cretaceous of Shanxi, China. Cretaceous Research. 108, 104357.
S. campi Young, 1942
Tithonian?, Late Jurassic
IVPP locality 47, upper Guangyuan Group, Sichuan, China
Syntypes- (IVPP V235) partial anterior lateral tooth (?x~22x13 mm)
(IVPP V236; lost) partial anterior lateral tooth (~47x21x14 mm)
(IVPP V238A; lost) partial lateral tooth (?x17x12 mm)
(IVPP V238B; lost) partial anterior tooth
(IVPP V238C; lost) fragmentary lateral tooth (?x14x7 mm)
(IVPP V239; lost) incomplete tooth (~32x12.5x7 mm)
Bathonian-Callovian?, Middle Jurassic
IVPP locality 49, middle Guangyuan Group, Sichuan, China
Referred- ?(IVPP coll.) few teeth (Young, Bien and Mi, 1943)
Diagnosis- Provisionally indeterminate relative to at least Metriacanthosauridae.
Other diagnoses- Young's original diagnosis was - "Teeth of Megalosaurus-type, distinctly compressed with anterior and posterior denticulations. They are pointed and moderately curved."  This describes most theropod teeth including Megalosaurus itself, so perhaps Young intended Szechuanosaurus to be distinct purely based on geography.
Comments- The syntype teeth were collected in late Spring 1941.  Young stated they "resemble, in many respects, those teeth described by Janensch from Tendaguru of Africa", citing Janensch's Theropod Type A and Type B teeth, which are megalosaur-grade teeth that have not been analyzed recently.  Note Dong et al.'s (1983) Figure 39 is mislabeled, with 1 being the Chienkosaurus lectotype V237A and supposed Hsisosuchus tooth V237B (not V235), 2 being V239 (not V236) and 3 being V236 (not V238).  Also note Wu et al. (2009) were incorrect to state Szechuanosaurus "was established by Young in 1942 on the basis of four isolated teeth", not realizing IVPP V238 is composed of pieces of three different teeth.  Wu et al. (2020) report "we only found one tooth (IVPP V 235) in the IVPP collections and the others are reported missing."  This makes IVPP V235 an obvious candidate to become the lectotype, although this would need to be proposed officially and is unfortunate as V236 and 239 were better preserved.  They photograph IVPP V235 in their Figure 5F.
Young states "The denticulations of V238 and V239 are comparatively finer and the size of them are smaller as compared with those of V235 and V236", but never gives measurements of these densities.  However, the plate would agree with the assessment as IVPP V236 has 12 serrations per 5 mm at midheight distally, IVPP V238A has 17 and IVPP V239 has ~19 although its figure isn't clear.  Wu et al. (2022) show IVPP V235 has 8.5 serrations per 5 mm mesially at the middle or base of the crown.
Young placed locality 47 at "the top part of the Kuangyuan Series and immediately below the Chentsianyen conglomerate", now known as the Guangyuan Group and the Chengqiangyan Group, with the former corresponding to the Xiashaximiao Formation through the Penglaizhen Formation.  As it was found "immediately below" the boundary (layer 8b in Young et al., 1943), Szechuanosaurus may be from the Penglaizhen Formation or slightly lower Shuining Formation.  The age is listed as Tithonian on fossilworks and in Weishampel (1990), the latter cited as from "Dong (pers. comm.)".  Geographically, locality 47 is "the hill slopes under the so-called Chentsianyen escarpment S. of the Kuangyuan city", now known as Guangyuan.
Young et al. (1943) list "Szechuanosaurus campi Young" from layer 5b, which is presumably "a few isolated teeth" mentioned by Young as deriving from locality 49, though they remain undescribed.  IVPP locality 49 is described as being "a few kilometers N. of the city [Guangyuan] in the hills along the Chengtu-Sian highway", and the highway connecting Chengdu and Xi'an (as the cities are now called) is China National Highway 108, or G108.
References- Young, 1942. Fossil vertebrates from Kuangyuan, N. Szechuan, China. Bulletin of the Geological Society of China. 22(3-4), 293-309.
Young, Bien and Mi, 1943. Some geologic problems of the Tsinling. Bulletin of the Geological Society of China. 23(1-2), 15-34.
Dong, Zhou and Zhang, 1983. Dinosaurs from the Jurassic of Sichuan. Palaeontologica Sinica. Whole Number 162, New Series C, 23, 136 pp.
He, 1984. The Vertebrate Fossils of Sichuan. Sichuan Scientific and Technical Publishing House, Chengdu, Sichuan. 168 pp.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.
Wu, Currie, Dong, Pan and Wang, 2009. A new theropod dinosaur from the Middle Jurassic of Lufeng, Yunnan, China. Acta Geologica Sinica. 83(1), 9-24.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.
Wu, Shi, Dong, Carr, Yi and Xu, 2020 (online 2019). A new tyrannosauroid from the Upper Cretaceous of Shanxi, China. Cretaceous Research. 108, 104357.
S? sp. indet. (Dong, 1977)
Kimmeridgian-Tithonian, Late Jurassic
Nanhuxiang, Kalaza Formation, Xinjiang, China
Material- (IVPP coll.) teeth (~45x~17x? mm)
Comments- Collected between 1964 and 1966 at "Nanhu, southeast of Qiketai" (translated), this was reported to be from the Houyanshan Formation of the Hongshan Series (Dong, 1977).  Weishampel (1990) lists this as a synonym of the Keilozo Formation (citing Dong, pers. comm.), which is now known as the Kalaza Formation.  Qiketai is more commonly known as Qiketaizhen (Qiketai Town), while Nanhu is Nanhuxiang (Nanhu Township).  Dong only says "Tooth fossils collected by us can be included in this species", referring to Szechuanosaurus campi.  The partial "Theropod tooth" in Plate II Figure 9 is presumably one of these, and if at X1 scale is identical in FABL to S. campi syntype IVPP V238A and very similar in outline from what is preserved.  Based on this and the similar age, the taxonomic assignment is retained pending detailed study.
References- Dong, 1977. On the dinosaurian remains from Turpan, Xinjiang. Vertebrata PalAsiatica. 15(1), 59-66.
Weishampel, 1990. Dinosaurian distribution. In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press. 63-139.

Teinurosaurus Nopcsa, 1928
= Saurornithoides Nopcsa, 1928 (preoccupied Osborn, 1924)
= Caudocoelus Huene, 1932
T. sauvagei (Huene, 1932) Olshevsky, 1978
= Caudocoelus sauvagei Huene, 1932
Tithonian, Late Jurassic
Mont-Lambert Formation, Hauts-de-France, France
Holotype- (BHN2R 240; = Boulogne Museum 500) incomplete distal caudal vertebra (75 mm)
Diagnosis- Provisionally indeterminate relative to Kaijiangosaurus, Tanycolagreus and Ornitholestes.
Other diagnoses- (after Huene, 1932; compared to Elaphrosaurus) centrum wider; narrower ventral surface; ventral median groove wider; transversely narrower prezygapophyses.
While Huene attmpted to distinguish Teinurosaurus from Elaphrosaurus, only the wider median ventral groove is apparent in existing photos of the former.  This is compared to the one distal caudal of the latter figured in ventral view, but as Kobayashi reports grooves become distally narrower in Harpymimus while Ostrom reports they become distally wider in Deinonychus, groove width is not considered taxonomically distinctive at our current level of understanding.  Indeed, this lack of data is most relevent to both diagnosing and identifying Teinurosaurus.  Very few taxa have detailed descriptions of distal caudal vertebrae or more than lateral views figured, let alone indications of variation within the distal caudal series.  So the facts that Fukuiraptor and Deinonychus share ventrally concave central articulations with Teinurosaurus in their single anteriorly/posteriorly figured distal caudal vertebra, or that Afromimus, "Grusimimus" and Falcarius also have have wide ventral grooves in their few ventrally figured distal caudals, are not considered taxonomically important. 
Comments- Sauvage (1897-1898; in a section written in January 1898) first mentioned a distal caudal vertebra he referred to the ornithischian Iguanodon prestwichii (now recognized as the basal styracosternan Cumnoria prestwichii) - "We are disposed to regard as belonging to the same species the caudal vertebra of a remote region, the part which we figure under n ° 7, 8" [translated].  Note Galton (1982) was incorrect in claiming Sauvage reported on this specimen in his 1897 paper (written December 6), which includes a section on prestwichii nearly identical to the 1897-1898 one but which lacks the paragraph describing this vertebra.  This could provide a specific date of December 1897 to January 1898 for the discovery and/or recognition of the specimen.  Huene (1932) correctly noted Sauvage mislabeled plate VII figure 8 as dorsal view, when it is in ventral view as understood by the text.  Compared to Cumnoria, the caudal is more elongate (length 3.93 times posterior height compared to 2.54 times at most), has a ventral median groove instead of a keel, and the prezygapophyseal base in 71% of the anterior central height compared to ~30-40%, all typical of averostrans.  Nopcsa (1928) recognized its theropod nature and in his list of reptile genera meant to use a footnote to propose Teinurosaurus as a "new name for the piece described and figured by Sauvage (Direct. Traveaux Geol. Portugal Lisbonne 1897-1898, plate VII, Fig. 7-10) as late caudal of Iguanodon Prestwichi."  Teinurosaurus is listed as an aublysodontine megalosaurid (not as an ornithomimine, contra Galton), roughly equivalent to modern Eutyrannosauria.  However due to a typographical error, the footnote's superscript 1 was placed after Saurornithoides instead of Teinurosaurus.  Sauvage (1929) corrected this in an addendum- "footnote 1 does not refer to Saurornithoides (line 19 from below) but to Teinurosaurus (last line of text)."  Unfortunately, Huene missed the addendum, and thus wrote "Nopcsa recognized in 1927 (43, p. 183) that this was a coelurosaur and intended to give it a name, but used one already used by Osborn, namely "Saurornithoides" (91, 1924, p. 3- 7). For this reason, a new name had to be given here" [translated].  Huene's proposed new name was Caudocoelus sauvagei, placed in Coeluridae and "somewhat reminiscent of Elaphrosaurus."  Huene is also perhaps the first of several authors to place the specimen in the Kimmeridgian, when it is actually from the Tithonian (Buffetaut and Martin, 1993; as Portlandian).  Galton wrote "Lapparent and Lavocat (1955: 801) gave a line drawing of the vertebra after Sauavage (1898) and included it in the section on Elaphrosaurus" and that the specimen "was referred to Elaphrosaurus by Lapparent and Lavocat (1955)."  This was perhaps done because Huene explicitly compared the two, ironically making it the only taxon distinguished from Teinurosaurus at the time.  Most of Huene's characters cannot be checked in the few published photos of Teinurosaurus, but the ventral median sulcus is indeed much wider than Elaphrosaurus.  Ostrom (1969) was the first author to detail Nopcsa's (1929) addendum, stating "Nopcsa's name Teinurosaurus has clear piority over Huene's Caudocoelus, but since Nopcsa failed to provbide a specific name, Teinurosaurus is not valid."  Olshevsky (1978) solved this by writing "Teinurosaurus has clear priority over Caudocoelus, as noted in Ostrom 1969, and it is certainly a valid generic name. The species Caudocoelus sauvagei is proposed here as the type species of the genus Teinurosaurus, resulting in the new combination Teinurosaurus sauvagei (von Huene 1932) as the proper name of the type specimen."  He also claimed "the specimen itself, unfortunately, was destroyed during World War II and thus must remain a nomen dubium."  This was repeated by Galton, but as Buffetaut et al. (1991) wrote- "Contrary to a widespread opinion (expressed, for instance, by Lapparent, 1967), the vertebra in question has survived two world wars and years of neglect, like a large part of the other fossil reptile remains in the collections of the Boulogne Natural History Museum (see Vadet and Rose, 1986)."  Olshevsky noted Steel misunderstood Nopsca in a different way, believing Teinurosaurus instead of Aublysodon was a "name, proposed by Cope in 1869 ... used instead of Deinodon", as stated under superscript 2.  Galton did have the first modern opinion on Teinurosaurus' affinities, stating "In addition to Elaphrosaurus, elongate prezygapophyses occur in the allosaurid Allosaurus and the dromaeosaurid Deinonychus, so this caudal vertebra can only be identified as theropod, family incertae sedis."  Buffetaut and Martin (1993) agreed, saying "no really distinctive characters that would allow a familial assignment can be observed."  Ford (2005 online) gave the type repository as "Dortigen Museum", but this is a misunderstanding based on Huene's "Boulogne-sur-mer (Nr. 500 im dortigen Museum)", which translated is "Boulogne-sur-mer (No. 500 in the museum there)", referring to the Boulogne Museum where it has always been held.  It was originally number 500, but was recatalogd at some point.
Sauvage lists the vertebra's length as 75 mm and his plate at natural size would have it be 79 mm, Huene lists it as 11 cm (110 mm) and his figure at 1:2 size would have it be 152 mm.  Galton's drawing with supposed 5 cm  scale would have it be 235 mm, while Buffetaut and Martin's plate with scale would leave it at 74 mm.  As Huene's and Galton's figures are taken from Sauvage's original plate and the newest and unique photo matches Sauvage's reported length almost exactly, 75 mm is taken as the correct length.
Relationships- While prior authors haven't specified Teinurosaurus' relationships past Theropoda (besides Lapparent and Lavocat's apparent synonymy with Elaphrosaurus), there are several ways to narrow down its identity.  Only averostrans are known from the Late Jurassic onward, so coelophysoid-grade taxa are excluded.  Some theropod clades were too small to have a 75 mm caudal, including most non-tyrannosauroid coelurosaurs besides ornithomimosaurs, therizinosaurs and eudromaeosaurs.  The former two are unknown from the Jurassic, and additionally paravians like eudromaeosaurs lack any neural spine by the time the centrum gets as elongate as Teinurosaurus (e.g. by caudal 12 in Deinonychus at elongation index of 2.4).  Teinurosaurus has an elongation index (centrum length/height) of 3.9, which also excludes Ceratosauridae, Beipiaosaurus + therizinosauroids and oviraptorosaurs.  Prezygapophyses basal depth is significantly less in ceratosaurids, megalosaurids, carnosaurs except Neovenator, compsognathids, Fukuivenator and Falcarius.  Remaining taxa are elaphrosaur-grade ceratosaurs, piatnitzkysaurids, Neovenator and basal tyrannosauroids. 
References- Sauvage, 1897. Notes sur les Reptiles Fossiles (1).  Bulletin de la Société géologique de France. 3(25), 864-875.
Sauvage, 1897-1898. Vertebres Fossiles du Portugual, Contributions a l'etude des poissions et des reptiles du Jurassique et du Cretaceous. Direction des Travaux Geologiques Portugal. 1-46.
Osborn, 1924. Three new Theropoda, Protoceratops zone, central Mongolia. American Museum Novitates. 144, 1-12.
Nopcsa, 1928. The genera of reptiles. Palaeobiologica. 1, 163-188.
Nopcsa, 1929. Addendum "The genera of reptiles". Palaeobiologica. 2, 201.
Huene, 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Palaeontologie. 4(1), 361 pp.
Lapparent and Lavocat, 1955. Dinosauriens. In Piveteau (ed.). Traite de Paleontologie. Masson et Cie. 5, 785-962.
Lapparent, 1967. Les dinosaures de France. Sciences. 51, 4-19.
Ostrom, 1969. Osteology of Deinonychus antirrhopus, an unusual theropod from the Lower Cretaceous of Montana. Peabody Museum of Natural History Bulletin. 30, 1-165.
Steel, 1970. Part 14. Saurischia. Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology. Gustav Fischer Verlag. 87 pp.
Olshevsky, 1978. The archosaurian taxa (excluding the Crocodylia). Mesozoic Meanderings. 1, 50 pp.
Galton, 1982. Elaphrosaurus, an ornithomimid dinosaur from the Upper Jurassic of North America and Africa. Paläontologische Zeitschrift. 56, 265-275.
Vadet and Rose, 1986. catalog commente des types et figures de dinosauriens, ichthyosauriens, sauropterygiens, pterosauriens et cheloninens du Musée d'Histoire Naturelle de Boulogne-sur-Mer. In E. Buffetaut, Rose and Vadet (eds.). Vértébrés Fossiles du Boulonnais. Mémoires de la Société Académique du Boulonnais. 1(2), 85-97.
Rose, 1987. Redecouverte d'une vertebre caudale reptilienne (Archosauriens) de status controverse et provenant des terrains jurassiques superieurs du Boulonnais. Bulletin de la Société académique du Boulonnais. 1(5), 150-153.
Buffetaut, Cuny and le Loeuff, 1991. French Dinosaurs: The best record in Europe? Modern Geology. 16(1-2), 17-42.
Buffetaut and Martin, 1993. Late Jurassic dinosaurs from the Boulonnais (northern France): A review. Revue de Paléobiologie. 7(vol. spéc.), 17-28.
Ford, 2005 online. http://www.paleofile.com/Dinosaurs/Theropods/Teinurosaurus.asp

Wakinosaurus Okazaki, 1992
W. satoi Okazaki, 1992
Late Hauterivian, Early Cretaceous
Sengoku Formation of the Wakino Subgroup of the Kwanmon Group, Japan
Holotype- (KMNH VP 000,016) partial tooth (~70 mm)
Comments- Okazaki (1990) originally identified the holotype as Megalosauridae indet..
References- Okazaki, 1990. Discovery of dinosaur remain from the Kwanmon Group. Abstract of the Annual Meeting of the Paleontological Society of Japan. 37
Okazaki, 1992. A new genus and species of carnivorous dinosaur from the Lower Cretaceous Kwanmon Group, Northern Kyushu. Bulletin of the Kitakyushu Museum of Natural History. 11, 87-90.

Walgettosuchus Huene, 1932
W. woodwardi Huene, 1932
= Megalosaurus woodwardi (Huene, 1932) Olshevsky, 1991
Albian, Early Cretaceous
Sandstone Member of the Griman Creek Formation, New South Wales, Australia
Holotype- (NHMUK R3717) incomplete distal caudal vertebra (63 mm)
Comments- Huene (1932) compared the apoparently long prezygapophyses (based on the depth of their bases?) to Elaphrosaurus and Ornithomimus, both of which he viewed as coelurosaurs. He felt it "quite possible, if not probable" that Walgettosuchus was an ornithomimid. It has more recently been placed in Theropoda indet., as in Agnolin et al. (2010). As Elaphrosaurus is now considered a ceratosaur and only averostrans are known from the Cretaceous, Walgettosuchus is here placed in Averostra pending further study. While Olshevsky (1991) listed Megalosaurus woodwardi as a junior synonym, he included no responsible author, nor has an earlier work using that combination for the Walgettosuchus material (as opposed to European finds) been located.
References- Huene, 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Palaeontologie. 4(1), viii + 361 pp.
Olshevsky, 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings. 2, 196 pp.
Agnolin, Ezcurra, Pais and Salisbury, 2010. A reappraisal of the Cretaceous non-avian dinosaur faunas from Australia and New Zealand: Evidence for their Gondwanan affinities. Journal of Systematic Palaeontology. 8(2), 257-300.

Yangchuanosaurus? "longqiaoensis" Li, Zhang and Cai, 1999
Late Jurassic
Penglaizhen Formation, Sichuan, China
Comments- This is only published as a faunal listing, so it is unknown if the specimen is really referrable to Yangchuanosaurus.
Reference- Li, Zhang and Cai, 1999. The Characteristics of the Composition of the Trace Elements in Jurassic Dinosaur Bones and Red Beds in Sichuan Basin. Geological Publishing House, Beijing. 155 pp.

undescribed Averostra (Buckley, McCrea and Currie, 2005)
Middle Turonian, Late Cretaceous
Kaskapau Formation, British Columbia, Canada
Material- two teeth
References- Buckley, McCrea and Currie, 2005. Theropod teeth from the Upper Cretaceous Kaskapau (Middle Turonian) and the Wapiti (Upper Campanian - Lower Maastrichtian) formations of north-eastern British Columbia, Canada. Journal of Vertebrate Paleontology. 25(3), 40A-41A.
Rylaarsdam, Varban, Plint, Buckley and McCrea, 2006. Middle Turonian dinosaur paleoenvironments in the Upper Cretaceous Kaskapau Formation, northeast British Columbia. Canadian Journal of Earth Sciences. 43(6), 631-652.

unnamed averostran (Marsh, 1881)
Late Tithonian, Late Jurassic
Brushy Basin Member of the Morrison Formation, Wyoming, US (Quarry 9)
Material- (YPM 1996) ?fifth cervical vertebra (46.8 mm)
?...(YPM 1997) incomplete ?fourth cervical vertebra (40.4 mm)
Comments- Originally assigned to Coelurus by Marsh (1881), Ostrom (1980) noted they were from a different quarry than the type specimens.  Makovicky (1997) described them in detail as a new taxon of coelurosaur more derived than Coelurus.  Considering similarities to small ceratosaurs like elaphrosaurines, they are provisionally placed as Averostra incertae sedis here pending further study.
References- Marsh, 1881. A new order of extinct Jurassic reptiles (Coeluria). American Journal Science. 21, 339-341.
Ostrom, 1980. Coelurus and Ornitholestes: Are they the same? In Jacobs (ed.). Aspects of Vertebrate History. Museum of Northern Arizona Press. 245-256.
Makovicky, 1997. A new small theropod from the Morrison Formation of Como Bluff, Wyoming. Journal of Vertebrate Paleontology. 17(4), 755-757.

undescribed Averostra (Madsen, 1976)
Tithonian, Late Jurassic
Brushy Basin Member of the Morrison Formation, Colorado, US (Mygatt-Moore quarry)
(MWC coll.) sixteen teeth (Kane, 2020)
Tithonian, Late Jurassic
Brushy Basin Member of the Morrison Formation, Utah, US (Cleveland-Lloyd quarry)
Material- (UUVP 30-727) tibia (374 mm) (Madsen, 1976)
(UUVP 40-264) femur (385 mm) (Madsen, 1976)
(UUVP 40-299) tibia (379 mm) (Madsen, 1976)
(UUVP 40-584) maxilla (Madsen, 1976)
(UUVP 509) maxilla (Madsen, 1976)
(UUVP 1599) tibia (550 mm) (Madsen, 1976)
(UUVP 1974) dentary (Madsen, 1976)
(UUVP 1987) metatarsal III (265 mm) (Madsen, 1976)
(UUVP 2308) metatarsal III (251 mm) (Madsen, 1976)
(UUVP 2584) tibia (358 mm) (Madsen, 1976)
(UUVP 2775) metatarsal III (145 mm) (Madsen, 1976)
(UUVP 2909) astragalus (Madsen, 1976)
(UUVP 2977) tibia (433 mm) (Madsen, 1976)
(UUVP 2998) humerus (280 mm) (Madsen, 1976)
(UUVP 3233) tibia (444 mm) (Madsen, 1976)
(UUVP 3872) femur (350 mm) (Madsen, 1976)
(UUVP 4909) humerus (277 mm) (Madsen, 1976)
Late Tithonian, Late Jurassic
Brushy Basin Member of the Morrison Formation, Wyoming, US (Reed's Quarry 12)
(YPM 58268) distal ?tibia (Dalman, 2014)
(YPM coll.) proximal ?ulna (Dalman, 2014)
Kimmeridgian-Tithonian, Late Jurassic
Morrison Formation, Colorado, US
(DMNS coll.) twenty-two teeth (Kane, 2020)
Comments- The Cleveland-Lloyd specimens were listed as Unidentified by Madsen (1976), and may belong to lesser known Morrison theropods like Stokesosaurus and Marshosaurus. Dalman (2014) referred YPM 58268 to Allosauroidea as a distal tibia, but the broad mediolateral expansion distally and apprent intercondylar notch suggests it may be a distal humerus instead. Similarly, Dalman has YPM coll. as a coelurosaurid [sic] proximal humerus, but Nair (pers. comm., 2015) correctly notes it resembles a proximal ulna more.
References- Madsen, 1976. Allosaurus fragilis: A revised osteology. Utah Geological and Mineral Survey Bulletin. 109, 1-163.
Dalman, 2014. New data on small theropod dinosaurs from the Upper Jurassic Morrison Formation of Como Bluff, Wyoming, USA. Volumina Jurassica. 12(2), 181-196.
Kane, 2020. Identifying Jurassic theropod genera using GIS maps of tooth serrations. The Society of Vertebrate Paleontology 80th Annual Meeting, Conference Program. 197.

undescribed averostran (Hilton, 2003)
Campanian, Late Cretaceous
Chico Formation, California, US
Material- (SC VRD57) (juvenile) limb bone fragment
Reference- Hilton, 2003. Dinosaurs and Other Mesozoic Reptiles of California. University of California Press. 312 pp.

undescribed Averostra (Chapman, Deck, Varricchio and Jackson, 2004)
Late Albian-Cenomanian, Early-Late Cretaceous
Wayan Formation, Idaho, US
Material- (IMNH 2251/49806) (juvenile) mid-posterior dorsal centrum (49.9 mm) (Krumenacker, Simon, Scofield and Varricchio, 2017)
(IMNH 2251/50850) incomplete mid caudal vertebra (Krumenacker, Simon, Scofield and Varricchio, 2017)
Comments- Chapman et al. (2004) reported "limited, non-diagnostic remains from a larger theropod" and "unprepared theropod fossils", but these were presumably described by Krumenacker et al. (2017).
References- Chapman, Deck, Varricchio and Jackson, 2004. Cretaceous Wayan Formation of Idaho: A preliminary report. 24(3), 151-152.
Krumenacker, Simon, Scofield and Varricchio, 2017 (online 2016). Theropod dinosaurs from the Albian-Cenomanian Wayan Formation of eastern Idaho. Historical Biology. 29(2), 170-186.

undescribed Averostra (Bonde, 2008)
Albian, Early Cretaceous
Willow Tank Formation, Nevada, US
Material- teeth
Reference- Bonde, 2008. Paleoecology and taphonomy of the Willow Tank Formation (Albian), southern Nevada. Masters thesis, Montana State University. 96 pp.

undescribed averostran (D'Emic, 2013)
Early Albian, Early Cretaceous
Paluxy Formation of the Trinity Group, Texas, US
Material- (SMU 61741) squamosal
References- D'Emic, 2013 (online 2012). Revision of the sauropod dinosaurs of the Lower Cretaceous Trinity Group, southern USA, with the description of a new genus. Journal of Systematic Palaeontology. 11(6), 707-726.

unnamed averostran (Fiorillo and Currie, 1994)
Late Albian, Early Cretaceous
Mussentuchit Member of the Cedar Mountain Formation, Utah, US
Material- (CM 72651) tooth fragment
Comments- Fiorillo (1999) described a tooth fragment with labiolingually elongate serrations and no blood grooves, which he felt was very similar to specimens described as Theropod A by Fiorillo and Currie (1994).
Reference- Fiorillo and Currie, 1994. Theropod teeth from the Judith River Formation (Upper Cretaceous) of south-central Montana. Journal of Vertebrate Paleontology. 14, 74-80.
Fiorillo, 1999. Non-mammalian microvertebrate remains from the Robison Eggshell site, Cedar Mountain Formation (Lower Cretaceous), Emery County, Utah. In Gillette (ed.). Vertebrate Paleontology in Utah. Utah Geological Survey, Miscellaneous Publication. 99-1, 259-268.

undescribed averostran (Templeman and Williamson, 2013)
Santonian-Early Campanian, Late Cretaceous
Menefee Formation, New Mexico, US
Material- fragmentary postcrania
Reference- Templeman and Williamson, 2013. A vertebrate fauna from the Santonian-Lower Campanian Menefee Formation, San Juan Basin, New Mexico. Journal of Vertebrate Paleontology. Program and Abstracts 2013, 224.

Unnamed Averostra (Jasinski, Sullivan and Lucas, 2011)
Early Maastrichtian, Late Cretaceous
Naashoibito Member of Ojo Alamo Formation, New Mexico, US
Material- (NMMNH P-28367) incomplete tooth
(NMMNH P-28369) incomplete tooth
(SMP VP-1318) incomplete caudal vertebra
(SMP VP-2069) partial ?premaxillary tooth (?x7x5 mm)
(SMP VP-2176) incomplete caudal centrum
(SMP VP-2434) ?cranial fragment
(SMP VP-2435) ?cranial fragment
(SMP VP-2500) two ?parietal fragments, braincase fragment
(SMP VP-2521) ?cranial fragment
(SMP VP-2626) (medium to large) incomplete vertebra, fragments
(SMP VP-2709) incomplete metatarsal
(SMP VP-2781) incomplete pedal ungual
(SMP VP-2788) pedal ungual
(SMP VP-3357) pedal phalanx ?III-1
Reference- Jasinski, Sullivan and Lucas, 2011. Taxonomic composition of the Alamo Wash local fauna from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico. In Sullivan, Lucas and Spielmann (eds.). Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin. 53, 216-271.

undescribed averostran (Horner, 1979)
Late Campanian, Late Cretaceous
Englishtown or Marshalltown Formation, New Jersey, US
Material- (AMNH 7624) incomplete tooth (FABL ~14 mm)
Comments- Listed as Dryptosaurus aquilunguis from "MAESTRICHTIAN: Mt. Laurel, Navesink and New Egypt Formations" by Horner (1979), Gallagher (1993) states the locality listed on the museum label ("About 6 mi. NW of Freehold, N. J.") "is mapped as Englishtown-Marshalltown Fm. area" "on the New Jersey Geological Map (Lewis and Kummel, 1910-1912)."  The AMNH online catalog includes a photo which indicates this is a recurved tooth ~2.6 times taller than its FABL with small serrations, suggesting it is tyrannosauroid or dromaeosaurid considering its stratigraphy.
References- Horner, 1979. Upper Cretaceous dinosaurs from the Bearpaw Shale (marine) of south-central Montana with a checklist of Upper Cretaceous dinosaur remains from marine sediments in North America. Journal of Paleontology. 53(3), 566-577.
Gallagher, 1993. The Cretaceous/Tertiary mass extinction event in the northern Atlantic coastal plain. The Mosasaur. 5, 75-154.

undescribed Averostra (Horner, 1979)
Late Campanian, Late Cretaceous
Wenonah Formation, New Jersey, US
Material- (Johnson coll.; cast MAPS A1226a) caudal vertebra
(MAPS A1210b) phalanx
Comments- Listed as Dryptosaurus aquilunguis from "MAESTRICHTIAN: Mt. Laurel, Navesink and New Egypt Formations" by Horner (1979), Baird (1986) gave a "caudal (MAPS A1226a, Johnson coll.) from the Wenonah" as a specimen that had been assigned to Ornithomimus antiquus.  Without more information, whether this is tyrannosauroid, ornithomimosaurian or neither is unknown.
Horner (1979) listed MAPS A1210b from the same localities as Coelosaurus antiquus, which seems to be the same specimen called MAPS A12106 and MAPS 12106 by Gallagher (1993).  Given the notation of MAPS A1226a, it seems likely A1210b is the correct number, and that the b was transcribed incorrectly as a 6 by Gallagher.  Gallagher states it is "listed as Dryptosaurus? sp. (phalanx) from Wenonah Formation."  Again the similarity between tyrannosauroid and ornithomimosaur pedal phalanges means its identity is uncertain until it is described, especially as Gallagher referred all reported "Coelosaurus" specimens to Dryptosaurus.
References- Horner, 1979. Upper Cretaceous dinosaurs from the Bearpaw Shale (marine) of south-central Montana with a checklist of Upper Cretaceous dinosaur remains from marine sediments in North America. Journal of Paleontology. 53(3), 566-577.
Baird, 1986. Upper Cretaceous reptiles from the Severn Formation of Maryland. The Mosasaur. 3, 63-85.
Gallagher, 1993. The Cretaceous/Tertiary mass extinction event in the northern Atlantic coastal plain. The Mosasaur. 5, 75-154.

undescribed Averostra (Martin and Brett-Surman, 1992 unpublished)
Late Aptian, Early Cretaceous
Dinosaur Park / Cherokee-Sanford Brick Clay Pit / Muirkirk Clay Pit USNM 41614, Arundel Formation, Prince George's County, Maryland, US
Material- (NHRD-AP 2010.v.014) tooth (Dinosaur Fund online)
(NHRD-AP 2013.v.678) tooth (Dinosaur Fund online)
(NHRD-AP 2014.s.094) tooth fragment (Dinosaur Fund online)
(NHRD-AP 2014.s.156) metatarsal (Dinosaur Fund online)
(NHRD-AP 2014.v.685) caudal vertebra (Dinosaur Fund online)
(USNM 437629) tooth (Martin and Brett-Surman, 1992 unpublished)
(USNM 442406) three teeth (Martin and Brett-Surman, 1992 unpublished)
(USNM 442442) tooth (Martin and Brett-Surman, 1992 unpublished)
(USNM 442521) left pedal phalanx II-2 (~64.8 mm) (USNM online)
(USNM 451937; phalanx = USNM 442510 in Martin and Brett-Surman, 1992 unpublished) (associated?) two teeth, partial pedal ungual (Carrano, 2024)
(USNM 451991) tooth (Martin and Brett-Surman, 1992 unpublished)
(USNM 466055) (associated?) incomplete tooth, proximal ?ischium (USNM online)
(USNM 497726) partial tooth (~80x>40x~14.5 mm) (Lipka, 1998)
(USNM 497731) proximal left femur (shaft ~78 mm wide trans) (USNM online)
(USNM 497732; = USNM 491732 of Carrano, 2024) partial tooth (?x~23x? mm) (Frederickson et al., 2018)
(USNM 497737) (associated?) partial dorsal or proximal caudal centrum (~52 mm tall), two vertebral fragments (USNM online)
(USNM 497750) partial tooth (Frederickson, Lipka and Cifelli, 2018)
(USNM 497751) partial tooth (Frederickson, Lipka and Cifelli, 2018)
(USNM 497752) partial tooth (?x~3.7x? mm) (Frederickson, Lipka and Cifelli, 2018)
(USNM 497753) partial tooth (Frederickson, Lipka and Cifelli, 2018)
(USNM 497754) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 497755) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 497756) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 497757) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 497758) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 497759) fragmentary bone (Frederickson, Lipka and Cifelli, 2018)
(USNM 534099; marked USNM 534018) proximal ?metatarsal IV (~35.6 mm ?anteropost prox) (USNM online)
(USNM 540723) posterior distal caudal vertebra (~9.3 mm tall post) (USNM online)
(USNM 540728) partial distal caudal vertebra (~18.3 mm tall) (USNM online)
(USNM 540764) proximal left pedal phalanx II-2 (~28.4 mm tall post) (USNM online)
(USNM 544050) proximal left metatarsal IV (~33 mm anteropost prox) (USNM online)
(USNM 544051) dorsal centrum (~42.1 mm) (USNM online)
(USNM 544054) right tibial shaft (midhsaft ~10.5 mm anteropost) (USNM online)
(USNM 544055) incomplete mid caudal vertebra (~77.9 mm) (USNM online)
(USNM 544133) partial distal caudal centrum (~18.2 mm tall) (USNM online)
(USNM 604957) incomplete tooth (USNM online)
(USNM 604986) limb bone fragment (shaft ~8.8 mm) (USNM online)
Late Aptian, Early Cretaceous
Arundel Formation, Prince George's County, Maryland, US
(USNM 8507) proximal tibia (~189 mm anteropost) (USNM online)
(USNM 425732) phalanx (~61.3 mm) (USNM online)
(USNM 535490 in part) ?ilial fragment (USNM online)
Comments- USNM 8507 is a proximal tibia discovered in 1887 and identified by Gilmore as Dryptosaurus sp. (USNM online), although it was not mentioned in his 1920 work on USNM theropods referring medius and potens to the genus. 
Martin and Brett-Surman (1992 unpublished) report "A small collection of theropod teeth has been recovered from the Muirkirk clay pit locality, and presents some interesting characteristics. The collection includes both premaxillary and maxillary/dentary teeth, with many crowns intact to the tip. The most consistent feature found in the maxillary/dentary teeth is the restriction of anterrior serrations to the top third of the tooth crown. The smaller teeth also exhibit this feature, but have a carina reaching close to the base of the crown. In the larger teeth the serrations of the anterrior [sic] surface terminate abruptly, without any observable decrease in the size of the individual denticles, and are not followed by a carina."  They determined "A brief analysis of the Arundel clay pit theropod maxillary/dentary teeth was made using methods outlined in Farlow, et. al. (1991)" which revealed "that the Arundel theropod teeth cluster most closely with those of an unidentified Comanchean theropod, dromaeosaurids, and Alectrosaurus (in the figures by Farlow, et. al., 1991). The larger teeth also correlate with those of an unidentified theropod from the Morrison Formation."  Unfortunately, the existing supplementary document to Farlow et al.'s paper does not indicate the identity of the Comanchean (Early Cretaceous), Morrison or supposed Alectrosaurus teeth, and the pdf of Martin and Brett-Surman's paper doesn't show the icon for Arundel material, so any further analysis is impossible.  Martin and Brett-Surman figure a pedal ungual in Figure 9 as "Theropod ungual (USNM 442510), side and dorsal views", but 442510 doesn't include an ungual and is actually figured on the next page incorrectly as USNM 442521 (based on the painted label and matching the USNM online catalog).  You might assume the figure captions were switched, but the online catalog shows USNM 442521 is a non-ungual phalanx.  The ungual shown in Figure 9 is actually USNM 451937 (Carrano, pers. comm. 9-2024).  Among specimens figured in this work, USNM 437629, 442406 and 442442 were all found in 1989.
Frederickson et al. (2018) note regarding USNM 497750-497759 "Theropod teeth that were highly weathered and abraded were indeterminate, based on their incompleteness. All of the teeth are small (less than 15 mm long) and are missing most of their enameled surface. Multiple fragmentary and abraded metapodial ends and undiagnostic other elements are also present in the Arundel sample. These specimens are referred to Theropoda based on their hollow interiors and well-developed collateral ligament pits."
Carrano (2024) stated the presence of "(1) the mesial margin of the rounded denticles on the mesial carina is subrectangular, with a flattened surface [character 89], and (2) the mesiodistal axis of the mid-crown denticles on the distal carina is inclined apically from the distal margin in lateral view [character 96]" that were found to be locally diagnostic to the genus by Hendrickx and Mateus (2014) "indicates that several isolated teeth from the Arundel Clay could pertain to Acrocanthosaurus", but "Other large teeth in the collection (USNM 8446, 451937, 491732, 497726) are not well-enough preserved for these features to be observed, and I consider them indeterminate to clade within Theropoda."  However, according to the USNM online catalog USNM 491732 is a specimen of the crinoid Uintacrinus socialis from the Turonian Carlile Shale of Kansas and it was a typo for tooth USNM 497732 assigned to Acrocanthosaurus by Frederickson et al. (2018) (Carrano, pers. comm. 9-2024).  USNM 8446 was previously referred to Allosaurus medius by Lull (1911) and USNM 497726 was referred to Acrocanthosaurus by Lipka (1998).  USNM 451937 was found in 1991.
USNM 534099 is in the USNM online catalog as "proximal end of metapodial" and photographed in distal view, but the broad rounded outline of one edge of the proximal end is only a good match for the lateral edge of metatarsal IV among theropods, but is 1.5 times larger than Deinonychus AMNH 3015.  However given a proximal depth versus total length ratio similar to Arkansaurus it would result in a metatarsal length of ~245 mm, well within the range of ornithomimosaurs and thus possibly referrable to grandis.  Note the associated photo has the number 534108 painted on it, but USNM 534108 is a collection of teeth from the cricetid muskrat Ondatra annectens from the Pleistocene of West Virginia.  USNM 534099 was discovered in 1995.
Among other USNM specimens listed above, USNM 425732 was found in 1988, 442521 in 1989, 451991 in 1991, 466055 in 1992, 497731 and 487737 in 1998, 535490 in 1999, 540723 and 604986 in 2010, 604957 in 2012, and 540728, 540764 544050, 544051, 544054, 544055 and 544133 from 2010-2013.  For NHRD-AP specimens,  NHRD-AP 2010.v.014 was found in 2010, 2013.v.678, 2014.s.156 and 2014.v.685 in 2013, and 2014.s.094 in 2014.
References- Lull, 1911. Systematic paleontology of the Lower Cretaceous deposits of Maryland: Vertebrata. Maryland Geological Survey. Lower Cretaceous, 183-211.
Martin and Brett-Surman, 1992 unpublished. A preliminary report on new dinosaur material from the Arundel Clay (Lower Cretaceous, Late Aptian-Early Albian) of Maryland. Smithsonian Institution. 31 pp.
Lipka, 1998. The affinities of the enigmatic theropods of the Arundel Clay facies (Aptian), Potomac Formation, Atlantic coastal plain of Maryland. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin. 14, 229-234.
Frederickson, Lipka and Cifelli, 2018. Faunal composition and paleoenvironment of the Arundel Clay (Potomac Formation; Early Cretaceous), Maryland, USA. Palaeontologia Electronica. 21.2.31A, 1-24.
Carrano, 2024 (online 2023). First definitive record of Acrocanthosaurus (Theropoda: Carcharodontosauridae) in the Lower Cretaceous of eastern North America. Cretaceous Research. 157, 105814.

unnamed Averostra (Schwimmer, Sanders, Erickson and Weems, 2015)
Middle Campanian, Late Cretaceous
Coachman Formation, South Carolina, US
Material- (ChM PV7366) distal ?metatarsal
(ChM PV8833) limb shaft fragment
(ChM PV9149) distal ?humerus
(ChM PV9150) distal ?tibia
Comments- ChM PV7366 was listed twice in the materials list, once as a manual phalanx. Schwimmer et al. (2015) assign the supposed humeral and tibial ends to ?Maniraptora indet., though one condyle of the second specimen is far more ventrally projected unlike most tibiae.
Reference- Schwimmer, Sanders, Erickson and Weems, 2015. A Late Cretaceous dinosaur and reptile assemblage from South Carolina, USA. Transactions of the American Philosophical Society. 105(2), 157 pp.

undescribed Averostra (Ramirez-Valesco and Hernandez-Rivera, 2015)
Late Cretaceous
unknown formation, Arenales, Mexico
Material- (uncollected) vertebrae
(uncollected) caudal vertebrae
Late Cretaceous
unknown formation, Palau, Mexico
(IGM coll.) tooth
Reference- Ramirez-Valesco and Hernandez-Rivera, 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero. 126(1), 63-108.

undescribed averostran (Ramirez-Valesco and Hernandez-Rivera, 2015)
Campanian, Late Cretaceous
San Carlos Formation, Mexico
Material- (IGM coll.) phalanx
Reference- Ramirez-Valesco and Hernandez-Rivera, 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero. 126(1), 63-108.

unnamed Averostra (Torres-Rodriguez, 2006)
Late Campanian, Late Cretaceous
Aguja Formation, Mexico
Material- (IGM 6213) tooth (Torres-Rodriguez, 2006)
(IGM coll.) tooth fragment (Monroy-Mujica, 2009)
(IGM coll.) tooth (Monroy-Mujica, 2009)
(IGM coll.) tooth (Monroy-Mujica, 2009)
(IGM coll.) tooth (Ramirez-Valesco and Hernandez-Rivera, 2015)
(IGM coll.) phalanx (Ramirez-Valesco and Hernandez-Rivera, 2015)
References- Torres-Rodríguez, 2006. Terópodos del Cretácico Superior del Estado de Coahuila, México. MS thesis, Universidad Nacional Autónoma de México. 91 pp.
Monroy-Mújica, 2009. Microvertebrados fósiles Cretácicos Tardíos (Campaniano Tardío) de la Formación Aguja en el Noroeste de Coahuila, México. Tesis Licenciatura. Universidad Nacional Autónoma de México. 111 pp.
Ramirez-Valesco and Hernandez-Rivera, 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero. 126(1), 63-108.

unnamed Averostra (Rodriguez de la Rosa and Cevallos-Ferriz, 1998)
Late Campanian, Late Cretaceous
Cerro del Pueblo Formation, Mexico
Material- (IGM-7714) partial caudal centrum
(IGM-7716) distal pedal phalanx
Comments- Rodriguez de la Rosa and Cevallos-Ferriz (1998) assigned IGM-7714 to Theropoda indet. and IGM-7716 to probable Dromaeosauridae, but the somewhat centrally placed collateral ligement pit and uncertain phalangeal identity make assignment more precise than Averostra uncertain.
Reference- Rodriguez de la Rosa and Cevallos-Ferriz, 1998. Vertebrates of the El Pelillal locality (Campanian, Cerro del Pueblo Formation), southeastern Coahuila, Mexico. Journal of Vertebrate Paleontology. 18(4), 751-764.

unnamed Averostra (Rodriguez-de la Rosa and Aranda-Manteca, 1999)
Late Campanian, Late Cretaceous
El Gallo Formation, Mexico
Material- (FCM 06/053) tooth (~20x9.5x5.6 mm) (Rodríguez-de la Rosa and Aranda-Manteca, 1999)
(LACM 17696) tooth (Hilton, 2003)
(LACM 17697) tooth (Hilton, 2003)
(LACM 17701) tooth (Hilton, 2003)
(LACM 17704) tooth (Hilton, 2003)
(LACM 17714) teeth (Hilton, 2003)
(LACM 20879) tooth (Hilton, 2003)
(LACM 20889) phalanx, distal phalanx (Hilton, 2003)
(LACM 28993) teeth (Hilton, 2003)
(LACM 28997) teeth (Hilton, 2003)
(LACM 42563) tooth (Hilton, 2003)
(LACM 42564) tooth (Hilton, 2003)
(LACM 42565) manual ungual (Hilton, 2003)
(LACM 42571) distal manual phalanx (Hilton, 2003)
(LACM 42574) tooth (Hilton, 2003)
(LACM 42631) tooth (Hilton, 2003)
(LACM 42638) manual phalanx (Hilton, 2003)
(LACM 42669) tooth (Hilton, 2003)
(LACM 42685) tooth (Hilton, 2003)
(LACM 42687) tooth (Hilton, 2003)
(LACM 42703) ungual (Hilton, 2003)
(LACM 42704) tooth (Hilton, 2003)
(LACM 42705) tooth (Hilton, 2003)
(LACM 52458) teeth (Hilton, 2003)
(LACM 57871) tooth fragment (Hilton, 2003)
(LACM 101163) teeth (Hilton, 2003)
(LACM 101164) manual phalanx (Hilton, 2003)
(LACM 101173) tooth (Hilton, 2003)
(LACM 101182) caudal vertebra (Hilton, 2003)
(LACM 101183) tooth (Hilton, 2003)
(LACM 101184) teeth (Hilton, 2003)
(UCMP coll.) vertebrae, ribs (Hilton, 2003)
(UCMP coll.) tooth (Hilton, 2003)
(IGM coll.) tooth (Romo de Vivar, 2011)
(IGM coll.) tooth (Romo de Vivar, 2011)
(IGM coll.) tooth (Romo de Vivar, 2011)
Comments- FCM 06/053 (Rodríguez-de la Rosa and Aranda-Manteca, 1999, 2000) is a tooth notable for its high DSDI and distal serrations being located inside a groove. Note while one might be tempted to compare this to Sinornithosaurus, which also has a high DSDI and supposedly venom-related grooves, the grooves of the latter are located labially, not distally.
References- Rodríguez-de la Rosa and Aranda-Manteca, 1999. Theropod teeth from the Late Cretaceous El Gallo Formation, Baja California, Mexico. VII International Symposium on Mesozoic Terrestrial Ecosystems. 56.
Rodríguez-de la Rosa and Aranda-Manteca, 2000.Where there venomous theropods? Journal of Vertebrate Paleontology. 20(3), 64A.
Hilton, 2003. Dinosaurs and other Mesozoic Reptiles of California. University of California Press. 356 pp.
Romo de Vivar, 2011. Microvertebrados Cretácicos Tardíos del área de El Rosario, Baja California, México. MS thesis, Universidad Nacional Autónoma de México. 146 pp.

undescribed Averostra (Ramirez-Valesco and Hernandez-Rivera, 2015)
Late Campanian-Maastrichtian, Late Cretaceous
Cabullona Group, Mexico
Material- (MPF coll.) metatarsal fragment
(MPF coll.) phalanx fragment
Reference- Ramirez-Valesco and Hernandez-Rivera, 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero. 126(1), 63-108.

undescribed averostran (Ramirez-Valesco and Hernandez-Rivera, 2015)
Late Campanian-Early Maastrichtian, Late Cretaceous
Olmos Formation, Mexico
Material- (IGM coll.) tooth fragments
Reference- Ramirez-Valesco and Hernandez-Rivera, 2015. Diversity of Late Cretaceous dinosaurs from Mexico. Boletín Geológico y Minero. 126(1), 63-108.

unnamed possible Averostra (Lindgren, Currie, Rees, Siverson, Lindström and Alwmark, 2008)
Early Berriasian, Early Cretaceous
Skyttegaard Member of the Rabekke Formation, Denmark
Material- (MGUH 28410a-d) fragmented premaxillary tooth
(MGUH coll.) tooth fragment
Comments- Lindgren et al. (2008) referred a-d to Maniraptora incertae sedis, noting the varying serration size is found in taxa with normally serrationless teeth.
References- Lindgren, Currie, Rees, Siverson, Lindström and Alwmark, 2008. Theropod dinosaur teeth from the lowermost Cretaceous Rabekke Formation on Bornholm, Denmark. Geobios. 41, 253-263.
Bonde, 2012. Danish dinosaurs: A review. In Godefroit (ed.). Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems. Indiana University Press. 434-451.

unnamed averostran (Poropat, Einarsson, Lindgren, Bazzi, Lagerstam and Kear, 2016)
Early Campanian, Late Cretaceous
Ugnsmunnarna, Sweden
Material- (LO 12095t) incomplete tibia
Reference- Poropat, Einarsson, Lindgren, Bazzi, Lagerstam and Kear, 2016 (online 2015). Late Cretaceous dinosaurian remains from the Kristianstad Basin of southern Sweden. In Kear, Lindgren, Hurum, Milàn and Vajda (eds.). Geological Society, London, Special Publications. 434, 231-239.

undescribed averostran (Metcalf and Walker, 1994)
Early Bathonian, Middle Jurassic
Chipping Norton Formation, England
Material- (GLRCM coll.; C) premaxillary tooth (3.4 mm)
Comments- This was labeled as "dromaeosaur-like" by Metcalf and Walker (1994).
It is a premaxillary tooth which is serrated on both carinae, though the mesial serrations do not extend as basally. Serrations are very flat and low with no blood pits. Serration density is 5-6/mm mesially and distally.
These are all fairly basal characters, suggesting the tooth may come from a basal tetanurine or carnosaur, or perhaps a very basal coelurosaur.
Reference- Metcalf and Walker, 1994. A new Bathonian microvertebrate locality in the English Midlands. In Fraser and Sues (eds.). In the Shadow of the Dinosaurs- Mesozoic Small Tetrapods. Cambridge University Press. 322-332.

unnamed Averostra (Benson, 2009)
Middle Bathonian, Middle Jurassic
Taynton Limestone Formation (=Stonesfield Slate), England
Material- (MB R 2351) distal tibia (32.1 mm wide) (Galton and Molnar, 2005)
(OUM J12003) proximal tibia (Benson, 2009)
(OUM J29776) tooth (Benson, 2009)
(OUM J29778) tooth (Benson, 2009)
Comments- Though Ezcurra and Agnolin (2012) referred MB R 2351 to Abelisauroidea, Rauhut (2012) noted their listed characters have broader distributions and are not consistently found in abelisauroids. He regarded it as Averostra indet., which seems valid as some ceratosaurs (e.g. Quilmesaurus, Majungasaurus) and most tetanurines have similar amounts of distal anteroposterior compression.
OUM J12003 is a tibia which differs from Megalosaurus in being smaller, with a thin fibular crest. Benson (2009) suggested it may be the same taxon as the tetanurine distal tibia MB R 2351. OUM J29776 is a tooth which differs from Megalosaurus in having a much higher serration density- 18 per 5 mm mesially and 18.5 per 5 mm mesially. Faint enamel wrinkles are present and the mesial serrations extend 40% of the crown length. OUM J29778 also has fine serrations- 14.5 per 5 mm on both carinae, and has mesial serrations over half the crown length. Both are smaller than Megalosaurus and have interdenticular sulci which are are short and perpendicular to the carinae.
References- Galton and Molnar, 2005. Tibiae of small theropod dinosaurs from Southern England: From the Middle Jurassic of Stonesfield near Oxford and the Lower Cretaceous of the Isle of Wight. In Carpenter (ed.). The Carnivorous Dinosaurs. Indiana University Press. 3-22.
Benson, 2009. An assessment of variability in theropod dinosaur remains from the Bathonian (Middle Jurassic) of Stonesfield and New Park Quarry, UK and taxonomic implications for Megalosaurus bucklandii and Iliosuchus incognitus. Palaeontology. 52(4), 857-877.
Ezcurra and Agnolin, 2012. An abelisauroid dinosaur from the Middle Jurassic of Laurasia and its implications on theropod palaeobiogeography and evolution. Proceedings of the Geologists' Association. 123(3), 500-507.
Rauhut, 2012. A reappraisal of a putative record of abelisauroid theropod dinosaur from the Middle Jurassic of England. Proceedings of the Geologists' Association. 123(5), 779-786.

undescribed Averostra (Lydekker, 1888)
Kimmeridgian, Late Jurassic
Kimmeridge Clay, England
Material- (NHMUK 46388) partial tooth (Lydekker, 1888)
(private coll.) two pedal phalanges (Brokenshire and Clarke, 1993)
Comments- NHMUK 46388 was referred to Megalosaurus insignis by Lydekker (1888), but is neither described nor illustrated.
The pedal phalanges were described as ornithomimid by Brokenshire and Clarke (1993), but Martill et al. (2006) could not place it more exactly than Theropoda indet..
References- Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Delair, 1973. The Dinosaurs of Wiltshire. Whiltshire Archaeology and Natural History Magazine. 68, 1-7.
Brokenshire and Clarke, 1993. Important recently collected dinosaurian remains from the Lower Kimmeridge Clay at Weymouth. Proceedings of the Dorset Natural History and Archaeological Society. 115, 177-178.
Martill, Naish and Earland, 2006. Dinosaurs in marine strata: Evidence from the British Jurassic, including a review of the allochthonous vertebrate assemblage from the marine Kimmeridge Clay Formation (Upper Jurassic) of Great Britain. In Colectivo Arqueológico-Paleontológico Salense (ed.). Actas de las III Jornadas sobre Dinosaurios y su Entorno. Salas de los Infantes (Burgos, España). 35-72.

unnamed Averostra (Milner, 2002)
Berriasian, Early Cretaceous
Purbeck Limestone Group, England
Material- ?(NHMUK 48251 in part) nine teeth (Fowler, 2007 online)
(NHMUK 44806) tooth (64 mm) (Lydekker, 1888)
(NHMUK R 2566a) tooth (28.5 mm) (Woodward, 1895)
(NHMUK R 2566b) tooth (31.5 mm) (Woodward, 1895)
(NHMUK R 2566c) tooth (26.5 mm) (Woodward, 1895)
(NHMUK R 2567a) tooth (Milner, 2002)
(NHMUK R 2567b) tooth (Milner, 2002)
(NHMUK R 2821) tooth (56.8 mm) (Milner, 2002)
(NHMUK R 6908; = DORCM G 80) partial metatarsal III (~280 mm) (Milner, 2002)
Early Berriasian, Early Cretaceous
Marly Freshwater Member of Lulworth Formation of Purbeck Limestone Group, England
(CAMSM J 13956) pedal phalanx III-1 (24 mm) (Milner, 2002)
Comments- Lydekker (1888) assigned NHMUK 44806 to Megalosaurus dunkeri, while it was later assigned to Altispinax dunkeri (Huene, 1926) and Megalosaurus sp. (Delair, 1959). NHMUK R 2566 was assigned to Megalosaurus sp. by Woodward (1895). Milner (2002) felt these and three others (NHMUK R 2567 and 2821) were closer to allosaurids than megalosaurids based on their higher DSDI. However, Dubreuillosaurus has a comparably high DSDI, so this is not a valid character for distinguishing carnosaurs from basal tetanurines. The teeth are retained in Averostra indet. until they are described in more detail. Neither these nor the pedal phalanx are illustrated. Fowler (2007 online) searched the crocodilian NHMUK remains and found nine teeth that are probably theropod instead.
The distal metatarsal III was found before 1954 but only described in 2002 by Milner. She tentatively assigned it to the Eumaniraptora based on slenderness, non-arctometatarsal condition and spatiotemporal occurance (earlier than known oviraptorosaurs, which are incorrectly said to be only known from Mongolia and Canada). However, most eumaniraptorans have ginglymoid third metatarsi (Bambiraptor, Velociraptor, Deinonychus, Dromaeosaurus, Achillobator, Rahonavis, Shenzhouraptor, Hulsanpes, basal Avebrevicauda), a subarctometatarsus (Pedopenna, Sinornithosaurus, Graciliraptor, Archaeopteryx), or both (Neuquenraptor, Microraptor, Troodontidae, Buitreraptor). Possible exceptions are scansoriopterygids, Jixiangornis and Yandangornis, though the former are only known from juvenile material and the latter two are illustrated and described poorly. So contra Milner, I find this metatarsal to most likely not be eumaniraptoran. Many non-paravian theropods can be excluded due to arctometatarsaly or subarctometatarsaly (tyrannosaurids, ornithomimosaurs, mononykines, basal oviraptorosaurs) or ginglymoidy (Compsognathus, Dilong, allosaurids, Acrocanthosaurus, Sinraptor, Torvosaurus). However, there are still several equally plausible alternatives left for the Purbeck metatarsal, which resembles not only oviraptorids, but also such varied taxa as Fukuiraptor, Falcarius, Tanycolagreus, Ornitholestes, Coelurus, Nqwebasaurus, Elaphrosaurus and Masiakasaurus. I recommend classifying it as Averostra indet..
References- Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Woodward, 1895. Note on megalosaurian teeth discovered by Mr. J. Alstone in the Portlandian of Aylesbury. Proceedings of the Geologists' Association. 14, 31-32.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous Formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.
Delair, 1959. The Mesozoic reptiles of Dorset. Part 2. Proceedings of the Dorset Natural History and Archaeological Society. 80, 52-90.
Milner, 2002. Theropod dinosaurs of the Purbeck Limestone Group, southern England. In Milner and Batten (eds.). Life and Environments in Purbeck Times. Special Papers in Palaeontology. 68, 191-201.
Fowler, 2007 online. http://www.denverfowler.com/publications/Fowler_2007_SVP.htm

unnamed averostran (Seeley, 1899)
Valanginian, Early Cretaceous
Hastings Group, England
Material- (lost) distal femur
Comments- Seeley (1899) described this as a bird most similar to grebes, though Galton and Martin (2002) thought it wasn't a bird. Naish (2000) thought it was very similar to Wessex Formation femur MIWG 6214 except for possessing an extensor/patellar groove. MIWG 6214 has most recently been referred to Ornithomimosauria by Allain et al. (2014).
References- Seeley, 1899. On evidence of a bird from the Wealden beds of Ansty Lane, near Cuckfield. Quarterly Journal of the Geological Society of London. 55, 416-418.
Naish, 2000. A small, unusual theropod (Dinosauria) femur from the Wealden Group (Lower Cretaceous) of the Isle of Wight, England. Neues Jahrbuch für Geologie und Paläontologie Monatshefte. 2000, 217-234.
Galton and Martin, 2002. Postcranial anatomy and systematics of Enaliornis Seeley, 1876, a footpropelled diving bird (Aves: Ornithurae: Hesperornithiformes) from the Early Cretaceous of England. Revue de Paleobiologie. 21(2), 489-538.
Allain, Vullo, Le Loeuff and Tournepiche, 2014. European ornithomimosaurs (Dinosauria, Theropoda): An undetected record. Geologica Acta. 12(2), 127-135.

undescribed Averostra (Lydekker, 1888)
Hauterivian-Barremian, Early Cretaceous
Weald Clay, England
Material- (NHMUK 28958) partial posterior dorsal centrum (Lydekker, 1888)
(NHMUK 37691) dorsal centrum (Lydekker, 1888)
(NHMUK 44806) tooth (Lydekker, 1888)
(NHMUK R139) two sacral fragments (Lydekker, 1888)
(NHMUK R141) dorsal centrum (Lydekker, 1888)
(NHMUK R210) tooth (Lydekker, 1888)
(NHMUK R1997) tooth (Osi et al., 2010)
(NHMUK R15909) tooth (Osi et al., 2010)
Comments- Most of this material was referred to Megalosaurus dunkeri by Lydekker (1888), then Altispinax dunkeri by Huene (1926), but has not been described in detail so cannot be compared to the holotypes of either. They may belong to Baryonyx, Altispinax, Valdoraptor, Neovenator, Calamosaurus, Eotyrannus or another Wealden theropod. Osi et al. (2010) described two additional supposed Megalosaurus dunkeri teeth, finding them and NHMUK R210 to clade with "Megalosaurus" pannoniensis in a morphometric study, but these are all from the Weald Clay of England, so may not belong to dunkeri in the first place.
References- Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.
Osi, Apesteguia and Kowalewski, 2010. Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe. Cretaceous Research. 31(3), 304-320.

undescribed Averostra (Mantell, 1827)
Barremian, Early Cretaceous
Upper Weald Clay, England
Material- (NHMUK 2141) posterior dorsal neural arch (Mantell, 1827)
(NHMUK 2294) partial caudal vertebra (Lydekker, 1888)
....(NHMUK 2295) partial caudal vertebra (Lydekker, 1888)
(NHMUK 2315) tooth (Lydekker, 1888)
(NHMUK 2332) tooth (Lydekker, 1888)
(NHMUK 2482) pedal ungual (Mantell, 1827)
(NHMUK 2501) pedal phalanx ?-1 (Lydekker, 1888)
(NHMUK 2503) pedal phalanx III-2 (Mantell, 1827)
(NHMUK 2513) tooth (Lydekker, 1888)
(NHMUK 2553; cast) metacarpal (Lydekker, 1888)
(NHMUK 2574) distal metatarsal III (Lydekker, 1888)
(NHMUK 2680) metatarsal III (Lydekker, 1888)
(NHMUK 2828) tooth (Lydekker, 1888)
(NHMUK 3221) tooth (Lydekker, 1888)
(NHMUK 3222) tooth (Lydekker, 1888)
(NHMUK 3223-3224) four teeth (Lydekker, 1888)
(NHMUK 3225) tooth (Lydekker, 1888)
(NHMUK 3333) tooth (Lydekker, 1888)
(NHMUK 3640) proximal pedal phalanx ?-1 (Lydekker, 1888)
(NHMUK 26012) tooth (Lydekker, 1888)
(NHMUK 28422) tooth (Lydekker, 1888)
(NHMUK 36495) partial metacarpal (Lydekker, 1888)
(NHMUK 36496) partial metacarpal (Lydekker, 1888)
(NHMUK 36551) proximal pedal phalanx ?-1 (Mantell, 1827)
(NHMUK 36522) partial tooth (Lydekker, 1888)
(NHMUK 36522a) three teeth (Lydekker, 1888)
(NHMUK 36523) tooth (Lydekker, 1888)
(NHMUK 39197) tooth (Lydekker, 1888)
(NHMUK R235) tooth (Lydekker, 1888)
(NHMUK R1105) incomplete manual ungual ?III (Owen, 1857)
Comments- Most of this material was referred to Megalosaurus dunkeri by Lydekker (1888), then Altispinax dunkeri by Huene (1926), but has not been described in detail so cannot be compared to the holotypes of either. They may belong to Baryonyx, Altispinax, Valdoraptor, Neovenator, Calamosaurus, Eotyrannus or another Wealden theropod.NHMUK 2141 and NHMUK 2482 were initially illustrated as Iguanodon by Mantell (1827). NHMUK R1105 and NHMUK 2482 were described and illustrated by Owen (1857) as Megalosaurus bucklandii (plate X, fig. 1-4 and 5 respectively). NHMUK R2559 was referred to M. dunkeri by Lydekker (1888), but was made the holotype of Megalosaurus oweni by the author the next year. NHMUK 2574 and 2680 were referred to oweni by Lydekker (1890), though this has not been confirmed by recent studies. Note Ford (www.paleofile.com) mistyped NHMUK 39197 as NHMUK 39497, and NHMUK 2513 as NHMUK 35523.
References- Mantell, 1827. Illustrations of the Geology of Sussex: The Fossils of Tilgate Forest. Lupton Relfe, [pp].
Owen, 1857. Monograph on the Fossil Reptilia of the Wealden and Purbeck Formations. Part III. Dinosauria (Megalosaurus) (Wealden). Palaeontographical Society Monographs. 9, 1-26.
Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Lydekker, 1889. On the remains and affinities of five genera of Mesozoic reptiles. Quarterly Journal of the Geological Society of London. 45, 41-59.
Lydekker, 1890. Contributions to our knowledge of the dinosaurs of the Wealden and the sauropterygians of the Purbeck and Oxford Clay. Quarterly Journal of the Geological Society of London. 46, 36-53.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.

undescribed Averostra (Hutt, 2001)
Barremian, Early Cretaceous
Wessex Formation, England
Material- (IWCMS 1995.234) tooth
(IWCMS 1995.235) tooth
(IWCMS 1996.154) sacrum, fragments
(IWCMS 1997.152) premaxilla
(IWCMS 2000.1108) metatarsal
(MIWG 46) tooth
(MIWG 1473) humeral shaft
?(MIWG 1498) fragment
?(MIWG 1587) fragment
?(MIWG 3006) fragment
?(MIWG 3240) fragment
(MIWG 3644) fragment
(MIWG 5120) tooth
(MIWG 5121) tooth
(MIWG 5126) tooth
(MIWG 5129) teeth
(MIWG 5134) teeth
(MIWG 5181) jaw fragment
(MIWG 5182) jaw fragment
(MIWG 5185) tooth fragment
(MIWG 5229) rib
(MIWG 5139) tooth
(MIWG 5245) fragment
(MIWG 5251) rib
(MIWG 5309) rib
(MWIG 5358) teeth
(MWIG 5424) caudal vertebra
(MWIG 5439) tooth
(MIWG 5456) sacrum
(MIWG 5820) cervical vertebra
(MIWG 5823) dorsal vertebra
(MIWG 5924) centrum
(MIWG 5832) pectoral or pelvic elements
(MIWG 5962) teeth
(MIWG 6350) pubis, femur
(MIWG 6351) tooth
(MIWG 6515) cervical vertebra
(MIWG 6516) cervical vertebra
(MIWG 6479) caudal vertebra
(MIWG 6869) tooth
(MIWG 6913) ?dorsal vertebra
(MIWG 7049) tibia
References- Hutt, 2001. catalog of Wealden Group Dinosauria in the Museum of Isle of Wight Geology. In Martill and Naish (eds.). Dinosaurs of the Isle of Wight. The Palaeontological Association. 411-422.

undescribed Averostra (Lydekker, 1888)
Aptian, Early Cretaceous
Lower Greensand, England
Material- (NHMUK 40455) partial distal caudal vertebra
(NHMUK 42032) dorsal centrum
Comments- This material was referred to Megalosaurus dunkeri by Lydekker (1888), then Altispinax dunkeri by Huene (1926), but has not been described and is probably too late to be either species.
References- Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.

unnamed possible theropod (Seeley, 1876)
Late Albian, Early Cretaceous
Cambridge Greensand, England
Material- (SMC B55281) anterior sacrum
Comments- SMC B55281 was identified by Seeley (1876) as a partial sacrum of Enaliornis barretti, reidentified as a pterosaur notarium by Galton and Martin (2002a), then identified again as a possible theropod sacrum by Galton and Martin (2002b).
References- Seeley, 1876. On the British fossil Cretaceous birds. Quarterly Journal of the Geological Society of London. 32, 496-515.
Galton and Martin, 2002a. Enaliornis, an Early Cretaceous hesperornithiform bird from England, with comments on other Hesperornithiformes. In Chiappe and Witmer (eds). Mesozoic birds: Above the heads of dinosaurs. Berkeley: University of California Press. 317-338.
Galton and Martin, 2002b. Postcranial anatomy and systematics of Enaliornis Seeley, 1876, a foot-propelled diving bird (Aves: Ornithurae: Hesperornithiformes) from the Early Cretaceous of England. Revue de Paleobiologie. 21(2), 489-538.

undescribed Averostra (Lapparent and Zbyszewski, 1957)
Callovian-Oxfordian, Middle-Late Jurassic
Colmeias, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) tooth
Comments- This was referred to Megalosaurus insignis, but is neither described nor illustrated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed possible Averostra (Lapparent and Zbyszewski, 1957)
Callovian-Oxfordian, Middle-Late Jurassic
Fervença, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) distal caudal vertebra (54 mm), distal caudal vertebra (51 mm)
Comments- These were referred to Megalosaurus insignis, but cannot be compared to the holotype. They were not reported to be associated and may not be theropod.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

undescribed Averostra (Lapparent and Zbyszewski, 1957)
Callovian-Oxfordian, Middle-Late Jurassic
Pombal, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) four teeth
Comments- These were referred to Megalosaurus insignis, but are neither described nor illustrated. They were not reported to be associated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed possible Averostra (Lapparent and Zbyszewski, 1957)
Callovian-Oxfordian, Middle-Late Jurassic
Salir do Porto, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) three caudal vertebrae
Comments- These were referred to Megalosaurus insignis, but cannot be compared to the holotype. They were not reported to be associated and may not be theropod.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

undescribed averostran (Sauvage, 1898)
Oxfordian, Late Jurassic
Portugal
Material- tooth
Comments- This was referred to Megalosaurus insignis, but is neither described nor illustrated.
Reference- Sauvage, 1898. Les Reptiles et les Poissons des terrains Mésozoïques du Portugal [The reptiles and fishes from the Mesozoic terrains of Portugal]. Bulletin de la Société Géologique de France, 3e série. 26, 442-446.

undescribed averostran (Rauhut, 2000)
Kimmeridgian, Late Jurassic
Guimarota, Alcobaça Formation, Leiria, Portugal
Material- (IPFUB Gui Th 5) manual ungual
Reference- Rauhut, 2000. The dinosaur fauna from the Guimarota mine. In Martin and Krebs (eds.). Guimarota - A Jurassic Ecosystem. Verlag Dr. Friedrich Pfeil. 75-82.

undescribed Averostra (Sauvage, 1894)
Kimmeridgian, Late Jurassic
Alcobaça Formation, Crasto and Pembel or Pombal, Portugal
Comments- This was referred to Megalosaurus insignis, but is neither described nor illustrated.
References- Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.
Sauvage, 1898. Vertébrés fossiles du Portugal: Contributions à l'étude des poissons et des reptiles du jurassique et du crétacique. Direction des Travaux Geologiques du Portugal. Memoires. Comissão do Serviço Geológico de Portugal. 1-46.

unnamed possible averostran (Lapparent and Zbyszewski, 1957)
Kimmeridgian, Late Jurassic
Praia Areia Branca, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) posterior dorsal vertebra (50 mm)
Comments- This was referred to Megalosaurus insignis, but cannot be compared to the holotype. The triangular centrum suggests it may not be theropod.
References- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed possible averostran (Lapparent and Zbyszewski, 1957)
Kimmeridgian, Late Jurassic
Cesareda, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) mid caudal centrum (76 mm)
Comments- This was referred to Megalosaurus insignis, but cannot be compared to the holotype and may not be theropod.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Averostra (Lapparent and Zbyszewski, 1957)
Kimmeridgian, Late Jurassic
Porto de Barcas, Lisboa, Portugal
Material- (Geological Services Museum of Portugal coll.?) tooth
(Geology Laboratory of the Faculty of Sciences of Lisbon coll.) distal femur
Comments- These were referred to Megalosaurus insignis. The tooth is neither described nor illustrated, and the femoral fragment cannot be compared to the holotype and may not be theropod. The remains were not reported to be associated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Averostra (Lapparent and Zbyszewski, 1957)
Kimmeridgian, Late Jurassic
Ourem, Santarem, Portugal
Material- (Geological Services Museum of Portugal coll.?) tooth, sacral centrum (90 mm), sacral centrum (80 mm), two partial distal caudal vertebrae, ulnar fragment
Comments- These were referred to Megalosaurus insignis. The tooth is neither described nor illustrated, and the postcrania cannot be compared to the holotype and may not be theropod. The remains were not reported to be associated, and indeed the sacrals are different sizes.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

undescribed Averostra (Lapparent and Zbyszewski, 1957)
Late Kimmeridgian, Late Jurassic
Foz do Arelho, Leiria, Portugal
Material- (Geological Services Museum of Portugal coll.?) six teeth
Comments- These were referred to Megalosaurus insignis, but are neither described nor illustrated. They were not reported to be associated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Averostra (Lapparent and Zbyszewski, 1957)
Late Kimmeridgian-Early Tithonian, Late Jurassic
Lourinha Formation, Portugal
Material- (Geological Services Museum of Portugal coll.?) five teeth
(Geology Laboratory of the Faculty of Sciences of Lisbon coll.) two manual unguals (15, ~17 mm)
Comments- These were referred to Megalosaurus insignis, though the teeth are neither described nor illustrated. The unguals cannot be compared to the holotype. None of the material was reported to be associated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Averostra (Lapparent and Zbyszewski, 1957)
Late Kimmeridgian-Early Tithonian, Late Jurassic
Atalaia, Sobral Formation, Lisbon, Portugal
Material- (Geological Services Museum of Portugal coll.?) nine teeth (60, 38, 25 mm)
Comments- These were referred to Megalosaurus insignis and were not reported to be associated.
Reference- Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

undescribed averostran (Malafaia, Mocho, Escaso, Dantas and Ortega, 2019)
Late Tithonian, Late Jurassic
Praia de Cambelas, Freixial Formation, Portugal
Material- (SHN.019/1) (small) tooth
Comments- Malafaia et al. (2019) listed this as "a tooth of an indeterminate small theropod" associated with the Lusovenator paratype.
Reference- Malafaia, Mocho, Escaso, Dantas and Ortega, 2019 (online 2018). Carcharodontosaurian remains (Dinosauria, Theropoda) from the Upper Jurassic of Portugal. Journal of Paleontology. 93, 157-172.

unnamed Averostra (Sauvage, 1898)
Aptian, Early Cretaceous
Boca do Chapim, Portugal
Material- teeth (Sauvage, 1898)
(Geological Services Museum of Portugal coll.?) two tooth fragments (FABL 20 mm)
Comments- Sauvage (1898) referred teeth to Megalosaurus superbus. Lapparent and Zbyszewski (1957) referred two tooth fragments from the Aptian of Portugal to the same species. but they could belong to any ceratosaur, basal tetanurine, carnosaur or basal coelurosaur.
References- Sauvage, 1898. Vertébrés fossiles du Portugal: Contributions à l'étude des poissons et des reptiles du jurassique et du crétacique. Direction des Travaux Geologiques du Portugal. Memoires. Comissão do Serviço Geológico de Portugal. 1-46.
Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Averostra (Sauvage, 1898)
Late Campanian-Maastrichtian, Late Cretaceous
Viso, Coimbra, Portugal
Referred- ?(Geological Services Museum of Portugal coll.?) partial tooth (~30x12x8 mm), tooth (26 mm), tooth fragment (Sauvage, 1898)
?(Geological Services Museum of Portugal coll.?) incomplete manual ungual (~22 mm), incomplete manual ungual (~17 mm), incomplete manual ungual (~13 mm) (Lapparent and Zbyszewski, 1957)
Comments- The teeth were referred to Megalosaurus sp. by Sauvage (1898), then they and the unguals were referred to Megalosaurus pannoniensis by Lapparent and Zbyszewski (1957). The unguals are not comparable to the holotype, though the measured tooth matches it in labiolingual compression and mesiodistal elongation. Whether any specimens were associated is unknown.
References- Sauvage, 1898. Vertébrés fossiles du Portugal: Contributions à l'étude des poissons et des reptiles du jurassique et du crétacique. Direction des Travaux Geologiques du Portugal. Memoires. Comissão do Serviço Geológico de Portugal. 1-46.
Lapparent and Zbyszewski, 1957. Les dinosauriens du Portugal [The dinosaurs of Portugal]. Mémoires des Services Géologiques du Portugal, nouvelle série. 2, 1-63.

unnamed Aversotra (Casanovas-Cladellas et al., 1993)
Tithonian-Berriasian, Late Jurassic-Early Cretaceous
Villar del Arzobispo Formation, Spain
Material- (BZ-3) partial tooth (Casanovas-Cladellas et al., 1993)
(FS-1) incomplete tooth (?x37.1x20.6 mm) (Suñer, Santisteban and Galobart, 2005)
(GAOO/CL/14) tooth (Barco and Ruiz-Omeñaca 2001a)
(LP-1) partial tooth (?x19.4x15 mm) (Suñer, Santisteban and Galobart, 2005)
(LV-1) tooth (67.5x24.7x11.1 mm) (Suñer, Santisteban and Galobart, 2005)
(MPZ01/97) proximal caudal centrum (Barco and Ruiz-Omeñaca 2001b)
(PM-1) partial pedal ungual (Suñer, Santisteban and Galobart, 2005)
tooth (Abella and Suñer, 2004)
three teeth, one bone (Suñer and Martín, 2009)
fifteen partial teeth (Gasco et al., 2012)
Comments- BZ-3 was assigned to Carnosauria by Casanovas-Cladellas et al. (1993), then to Theropoda indet. by Ruiz-Omeñaca and Canudo (2003).
References- Casanovas-Cladellas, Santafé-Llopis and Santisteban-Bové, 1993. First dinosaur teeth from the Lower Cretaceous of Benicatazara (Aras de Alpuente, Valencia). Revue de Paléobiologie. Special volume 7, 37-44.
Barco and Ruiz-Omeñaca, 2001a. Primeros dientes de terópodos (Dinosauria, Saurischia) en la Formación Villar del Arzobispo (Titónico-Berriasiense): Yacimientos Cuesta Lonsal y Las Cerradicas 2 (Galve, Teruel). Publicaciones del Seminario de Paleontología de Zaragoza. 5, 239-246.
Barco and Ruiz-Omeñaca, 2001b. Primeros restos postcraneales de terópodos (Dinosauria, Saurischia) en la Formación Villar del Arzobispo (Titónico-Berriasiense): Un centro vertebral caudal del yacimiento Carretera (Galve, Teruel). Publicaciones del Seminario de Paleontología de Zaragoza. 5, 247-254.
Ruiz-Omeñaca and Canudo, 2003. Dinosaurios (Saurischia, Ornithischia) en el Barremiense (Cretácico inferior) de la Península Ibérica. In Pérez-Lorente (Ed.). Dinosaurios y otros reptiles Mesozoicos en España. Ciencias de la Tierra. 26, 269-312.
Canudo and Ruiz-Omenaca, 2003. Los restos directos de dinosaurios teropodos (excluyendo Aves) en Espana. In Pérez-Lorente (Ed.). Dinosaurios y otros reptiles Mesozoicos en España. Ciencias de la Tierra. 26, 347-373.
Abella and Suñer, 2004. Un nuevo diente aislado de terópodo del yacimiento de El Chopo (Alpuente, Los Serranos, Valencia). Libro de Resúmenes del II Encuentro de Jóvenes Investigadores en Paleontología. 87-88.
Suñer, Santisteban and Galobart, 2005. Nuevos restos de Theropoda del Jurásico Superior-Cretácico Inferior de la Comarca de Los Serranos (Valencia). Revista Española de Paleontologia. N. Extra X, 93-99.
Suñer and Martín, 2009. Un nuevo yacimiento del tránsito Jurásico-Cretácico de Alpuente (Los Serranos, Valencia, España): Resultados preliminares. Paleolusitana. 1, 441-447.
Gascó, Cobos, Royo-Torres, Mampel and Alcalá, 2012. Theropod teeth diversity from the Villar del Arzobispo Formation (Tithonian-Berriasian) at Riodeva (Teruel, Spain). Palaeobiodiversity and Palaeoenvironments. 92(2), 273-285.

undescribed Aversotra (Santos-Cubedo, Poza, Suner and de Santisteban, 2010)
Aptian, Early Cretaceous
Arcillas de Morella Formation, Spain
Material- teeth (Santos-Cubedo, Poza, Suner and de Santisteban, 2010)
proximal chevron (268 mm) (Selles, Santos-Cubedo and Poza, 2011)
References- Santos-Cubedo, Poza, Suner and de Santisteban, 2010. New remains of a titanosaur (Dinosauria: Sauropoda) from the Early Cretaceous of Spain. Journal of Vertebrate Paleontology. Program and Abstracts 2010, 157A.
Selles, Santos-Cubedo and Poza, 2011. Injury in a theropod dinosaur from the Early Cretaceous of Spain. Journal of Vertebrate Paleontology. Program and Abstracts 2011, 192.

unnamed possible averostran (Blanco, Mendez and Marmi, 2015)
Late Maastrichtian, Late Cretaceous
Cingles de Cal Ros, Tremp Formation, Spain
Material- (IPS-81878) incomplete limb element
Reference- Blanco, Mendez and Marmi, 2015. The fossil record of the uppermost Maastrichtian Reptile Sandstone (Tremp Formation, northeastern Iberian Peninsula). Spanish Journal of Palaeontology. 30(1), 147-160.

undescribed averostran (Ortega, Escaso, Perez Garcia, Torices and Sanz, 2009)
Late Campanian-Early Maastrichtian, Late Cretaceous
Villalba de la Sierra Formation, Spain
Material- cranial and postcranial elements
Comments- Ortega et al. (2009) refer to this as a 'basal large theropod', which given the provenence is most likely an abelisaurid.
Reference- Ortega, Escaso, Perez Garcia, Torices and Sanz, 2009. The vertebrate diversity of the Upper Campanian-Lower Maastrichtian "Lo Hueco" fossil-site (Cuenca, Spain). Journal of Vertebrate Paleontology. 29(3), 159A-160A.

unnamed Aversotra (Lapparent, 1943)
Late Oxfordian, Late Jurassic
Solvay Company quarry, Damparis, Jura, France
Material- (MNHN coll.) seven teeth (110, 22, 11, 10 mm)
Comments- These were referred to Megalosaurus insignis.
Reference- Lapparent, 1943. Les dinosauriens jurassiques de Damparis (Jura) [The Jurassic dinosaurs of Damparis (Jura)]. Mémoires de la Société Géologique de France (Nouvelle Série). Mémoire 21(47), 1-21.

undescribed averostran (Sauvage, 1894)
Middle Kimmeridgian, Late Jurassic
Moulin-Wibert, Boulogne, France
Material- (Beaugrand coll.) tooth
Comments- This was referred to Megalosaurus insignis, but neither described nor illustrated.
Reference- Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.

unnamed Averostra (Sauvage, 1874)
Late Kimmeridgian, Late Jurassic
Châtillon, Pas-de-Calais, France
Material- (Musée de Boulogne coll.) two fused sacral centra
(Musée de Boulogne coll.) pedal ungual
(Musée de Boulogne coll.) pedal phalanx IV-?
Comments- The sacrals and ungual were referred to Megalosaurus insignis by Sauvage (1874). He referred a pedal phalanx to ?Iguanodon, but later (1894) reassigned it to M. insignis.
Reference- Sauvage, 1874. Mémoire sur les dinosauriens et les crocodiliens des terrains jurassiques de Boulogne-sur-Mer. Mémoires de la Société Géologique de France, série 2. 10(2), 1-57.
Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.

undescribed Averostra (Sauvage, 1894)
Late Kimmeridgian, Late Jurassic
Wimille, Bouogne, France
Material- teeth
Comments- These were referred to Megalosaurus insignis, but neither described nor illustrated. Note while Huene (1926) lists Megalosaurus teeth from Wimille near Montagne Rouge, Sauvage (1894) does not list any from there, only Cumnoria teeth and eroded fragments.
References- Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.
Sauvage, 1900. catalog des Reptiles trouves dans le terrain jurassique-superieur du Boulonnais. Compte rendu de l’Association francaise pour l’avancement des sciences. 1899, 416-419.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.

undescribed Averostra (Sauvage, 1894)
Middle Tithonian, Late Jurassic
Mont-Lambert, Boulogne, France
Material- teeth
Comments- These were referred to Megalosaurus insignis.
References- Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.
Sauvage, 1914. catalog des reptiles jurassiques du Boulonnais. Bulletin de la Société académique de Boulogne-sur-Mer. 10, 1-12.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.

unnamed Averostra (Sauvage, 1874)
Middle Tithonian, Late Jurassic
Fort de la Crèche, Pas-de-Calais, France
Material- (Musée de Boulogne coll.) tooth (110 mm)
(Musée de Boulogne coll.) incomplete tooth (~70 mm)
(Musée de Boulogne coll.) incomplete tooth
(Musée de Boulogne coll.) tooth (>17 mm)
Comments- These were referred to Megalosaurus insignis.
Reference- Sauvage, 1874. Mémoire sur les dinosauriens et les crocodiliens des terrains jurassiques de Boulogne-sur-Mer. Mémoires de la Société Géologique de France, série 2. 10(2), 1-57.

undescribed averostran (Lydekker, 1888)
Late Tithonian, Late Jurassic
Ningle, Pas-de-Calais, France
Material- (NHMUK 35553a) tooth
Comments- This was referred to Megalosaurus insignis, but is neither described nor illustrated.
Reference- Lydekker, 1888. catalog of the Fossil Reptilia and Amphibia in the British Museum (Natural History), Cromwell Road, S.W., Part 1. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum of Natural History, London. 309 pp.

unnamed Averostra (Sauvage, 1882b)
Early Cretaceous
Bar-le-Duc, Meuse, France
Material- (Pierson coll.) pedal phalanx II-1 (100 mm)
? (Pierson coll.) pedal phalanx (65 mm)
Comments- Sauvage (1882b) described two pedal phalanges as belonging to Erectopus superbus, specifying one came from Bar-le-Duc. Huene (1926a, b) retained that referral and listed both as deriving from that area. Chure (2000) states Huene (1926a) described this element as part of the type material, but the pedal phalanges Huene mentions in the type description are in figures 3.3 and 4.4 of Sauvage's paper (metacarpal I and pedal phalanx IV-?, both from the type), whereas this phalanx is in figure 4.3. The phalanges may belong to any large theropod, and are not comparable to Erectopus' type.
References- Sauvage, 1882b. Recherches sur les reptiles trouvés dans le Gault de l'est du bassin de Paris [Research on the reptiles found in the Gault of the eastern Paris Basin]. Mémoires de la Société Géologique de France, série 3. 2(4), 1-42.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.
Huene. 1926b. On several known and unknown reptiles of the order Saurischia from England and France. Annals and Magazine of Natural History.17, 473-489.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.

unnamed averostran (Parent, 1893)
Early Cretaceous
Wealden Group(?), Wimereux, Pas-de-Calais, France
Material- (Lille Natural History Museum coll.) pedal ungual (~100 mm), elements
Comments- Parent (1893) and Sauvage (1894) both referred this ungual to Megalosaurus insignis.
References- Parent, 1893. Le Wealdien du Bas-Boulonnais. Annales de la Societe Geologique du Nord. 21, 50-91.
Sauvage, 1894. Les dinosauriens du terrain jurassique supérieur du Boulonnais. Bulletin de la Société Géologique de France, 3e serie. 22, 465-470.
Buffetaut, Cuny and le Loeuff, 1991. French Dinosaurs: The best record in Europe? Modern Geology. 16(1-2), 17-42.

unnamed Averostra (Barrois, 1875)
Early Albian, Early Cretaceous
Phosphate bearing beds of La Penthieve near Louppy-de-Chateau, Meuse, France
Material- (Musée de la Faculté des Sciences de Lille coll.) tooth (Barrois, 1875)
(Pierson coll.) distal femur (Sauvage, 1882a)
Comments- Barrois (1875) and Sauvage (1876) described a tooth from Louppy-de-Chateau as Megalosaurus. Sauvage (1882a) briefly described a partial skeleton from there as a new species Megalosaurus superbus, referring a large distal femur found in the same area to the same taxon. He later (1882b) described both in more detail and indicated the tooth was also thought to be from that species. Huene (1926a, b) believed the distal femur to come from a different taxon of carnosaur from M. superbus, which he renamed Erectopus in 1923. Huene (1932) later kept the tooth referred to superbus. The tooth is typical of large theropods while the femur has never been illustrated, though both may indeed belong to Erectopus.
References- Barrois, 1875. Les reptiles du terrain Crétacé du nord-est du Bassin de Paris. Bulletin scientifique, historique et littéraire du Nord. 6, 1-11.
Sauvage, 1876. Notes sur les reptiles fossiles no. 9. De la presence du type dinosaurien dans le Gault du nord de la France. Bulletin de la Société Géologique de France. 4, 439-442.
Sauvage, 1882a. Sur les Reptiles trouvés dans le gault de l'est de la France [On the reptiles found in the Gault of eastern France]. Comptes Rendus Hebdomadaires des Seances de l'Académie des Sciences. 94, 1265-1266.
Sauvage, 1882b. Recherches sur les reptiles trouvés dans le Gault de l'est du bassin de Paris [Research on the reptiles found in the Gault of the eastern Paris Basin]. Mémoires de la Société Géologique de France, série 3. 2(4), 1-42.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.
Huene. 1926b. On several known and unknown reptiles of the order Saurischia from England and France. Annals and Magazine of Natural History.17, 473-489.

unnamed Averostra (Barrois, 1875)
Albian, Early Cretaceous
Grandpre, Ardennes, France
Material- (Musée de la Faculté des Sciences de Lille coll.) two teeth, centrum (65 mm) (Barrois, 1875)
(Peron coll.) distal fibula(?), distal metatarsal(?) (Sauvage, 1882b)
Comments- Barrois (1875) and Sauvage (1876) described two teeth and a centrum from Grandpre as Megalosaurus. Sauvage (1882b) referred the teeth to Megalosaurus superbus, and described a supposed distal metatarsal and proximal metapodial from Grandpre as also belonging to M. superbus. Huene (1926a, b) retained all of these in that species, which he had moved to the new genus Erectopus in 1923. He listed both limb bones as metatarsals on page 43, but on page 79 stated the proximal metapodial was a distal fibula. Huene (1932) later kept the teeth referred to superbus, while he kept the limb elements with the Erectopus type material as E. sauvagei. The illustrated tooth and limb bone fragment do not appear particularly diagnostic and may belong to any ceratosaur, basal tetanurine, carnosaur or basal coelurosaur. The centrum and supposed distal fibula may not even be theropodan.
References- Barrois, 1875. Les reptiles du terrain Crétacé du nord-est du Bassin de Paris. Bulletin scientifique, historique et littéraire du Nord. 6, 1-11.
Sauvage, 1876. Notes sur les reptiles fossiles no. 9. De la presence du type dinosaurien dans le Gault du nord de la France. Bulletin de la Société Géologique de France. 4, 439-442.
Sauvage, 1882b. Recherches sur les reptiles trouvés dans le Gault de l'est du bassin de Paris [Research on the reptiles found in the Gault of the eastern Paris Basin]. Mémoires de la Société Géologique de France, série 3. 2(4), 1-42.
Huene, 1926a. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista Museo de La Plata. 29, 35-167.
Huene. 1926b. On several known and unknown reptiles of the order Saurischia from England and France. Annals and Magazine of Natural History.17, 473-489.
Huene, 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Palaeontologie. 4(1), 361 pp.

undescribed averostran (Dollo, 1909)
Hauterivian-Barremian, Early Cretaceous
Weald Clay, Belgium
Material- tooth
Comments- This tooth was referred to Megalosaurus dunkeri by Dollo (1909), then Altispinax dunkeri by Huene (1926), but has not been described in detail so cannot be compared to the holotype of the former. It may belong to Altispinax, Valdoraptor, Neovenator, Calamosaurus, Eotyrannus or another Wealden theropod.
References- Dollo, 1909. The fossil vertebrates of Belgium. Annals of the New York Academy of Sciences. 19(4), 99-119.
Huene, 1926. The carnivorous Saurischia in the Jura and Cretaceous formations, principally in Europe. Revista del Museo de La Plata. 29, 1-167.

unnamed averostran (Huene, 1966)
Toarcian, Early Jurassic
Schleswig-Holstein, Germany
Material- partial dorsal centrum (80 mm)
Comments- This centrum was described by Huene (1966) as a megalosaurid. It has a convex anterior articular surface.
Reference- Huene, 1966. Ein Megalosauriden- Wirbel des lias aus norddeutschem Geschiebe. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie. 1966(5), 318-319.

undescribed averostran (Lubbe, Richter and Knotschke, 2009)
Kimmeridgian, Late Jurassic
Langenberg Quarry, Germany
Material- ?(DFMMh/FV 707.1) partial tooth (Lubbe, Richter and Knötschke, 2009)
Comments- While seven teeth assigned to Velociraptorinae by Lubbe et al. (2009), Gerke and Wings (2014) found four of these were Neotheropoda indet. (presumably sensu Bakker), megalosaurid and tyrannosauroid. Based on the information in Lubbe et al., FV 707.1 may be indet. (larger and only partially preserved).
References- Lubbe, Richter and Knötschke, 2009. Velociraptorine dromaeosaurid teeth from the Kimmeridgian (Late Jurassic) of Germany. Acta Palaeontologica Polonica. 54(3), 401-408.
Gerke and Wings, 2014. Characters versus morphometrics: A case study with isolated theropod teeth from the Late Jurassic of Lower Saxony, Germany, reveals an astonishing diversity of theropod taxa. Journal of Vertebrate Paleontology. Program and Abstracts 2014, 137.

unnamed Averostra (Lanser and Heimhofer, 2015)
Late Barremian-Early Aptian, Early Cretaceous
Balve-Beckum quarry, Germany
Material- (LWL MN Ba 1; Morphotype B) partial lateral tooth (?x16.5x7.8 mm)
(LWL MN Ba 2; Morphotype B) partial lateral tooth (?x5.9x3.7 mm)
(LWL MN Ba 3; Morphotype B) partial lateral tooth
(LWL MN Ba 4; Morphotype B) lateral tooth (14.3x9.9x4.8 mm)
(LWL MN Ba 4a; Morphotype B) lateral tooth fragment
(LWL MN Ba 16; Morphotype A) lateral tooth fragment
(LWL MN Ba 18; Morphotype A) lateral tooth fragment
(LWL MN Ba 19; Morphotype A) lateral tooth fragment
(LWL MN Ba 20; Morphotype A) partial lateral tooth (?x8.3x4.1 mm)
(LWL MN Ba 22; Morphotype A) lateral tooth fragment
Reference- Lanser and Heimhofer, 2015. Evidence of theropod dinosaurs from a Lower Cretaceous karst filling in the northern Sauerland (Rhenish Massif, Germany). Paläontologische Zeitschrift. 89(1), 79-94.

unnamed averostran (Garilli, Klein, Buffetaut, Sander, Pollina, Galletti, Cillari and Guzzetta, 2009)
Late Aptian-Early Albian, Early Cretaceous
Section M, Pizzo Muletta succession, Sicily, Italy
Material- (uncollected) (subadult) partial ?humerus or ?femur
Comments- Discovered in 2005 and only visible in section, Garilli et al. (2009) conclude "the combination of the open medullary cavity combined with laminar fibrolamellar bone tissue suggests that the bone from Grotta Lunga represents a theropod."
References- Garilli, Klein, Buffetaut, Sander, Pollina, Galletti, Cillari and Guzzetta, 2009. First dinosaur bone from Sicily identified by histology and its paleobiogeographical implications. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie - Abhandlungen. 252(2), 207-216.
Randazzo, Di Stefano, Schlagintweit, Todaro, Cacciatore and Zarcone, 2021. The migration path of Gondwanian dinosaurs toward Adria: New insights from the Cretaceous of NW Sicily (Italy). Cretaceous Research. 126, 104919.

undescribed possible averostran (Codrea, Godefroit and Smith, 2012)
Maastrichtian, Late Cretaceous
Rusca Montana Basin, Romania
Material- (UBB NgTh1) partial tooth
Comments- Codrea et al. (2012) state UBB NgTh1 "may be tentatively attributed to a troodontid-like theropod because it displays the following characters (Currie et al., 1990): the crown is less recurved than in teeth ascribed to velociraptorines, and both the mesial and distal denticles are well developed (six denticles per millimeter) and hooklike."  Yet the serrations are not nearly as large as derived troodontids, recurvature is absent unlike serrated troodontid teeth, and the base is lacking so that root constriction is unknown.  The preserved tip is unusual in being very low (height ~80% of FABL).  This is here referred to ?Averostra.
Reference- Codrea, Godefroit and Smith, 2012. First discovery of Maastrichtian (Latest Cretaceous) terrestrial vertebrates in Rusca Montana basin (Romania). In Godefroit (ed.). Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems. Indiana University Press. 570-581.

unnamed averostran (Codrea, Smith, Dica, Folie, Garcia, Godefroit and Van Itterbeecke, 2002)
Late Maastrichtian, Late Cretaceous
Sinpetru Beds, Romania
Material- (IRSNB coll.) teeth (~3.1x2.5x? mm)
Comments- Codea et al. (2002) describe an assemblage collected in 2001, stating "some fragmentary teeth may be tentatively attributed to troodontid-like theropods (Fig. 4k), as they display the following characters: the crown is less recurved than in teeth ascribed to velociraptorines, both the mesial and distal denticles are well developed, the mesial denticles extend towards the base of the crown, distal denticles are wider than long, oblique to the tooth axis and often hook-like."  The figured tooth does not preserve the base to determine if it had constricted roots, so could easily be e.g. noasaurid instead considering biogeography.
Reference- Codrea, Smith, Dica, Folie, Garcia, Godefroit and Van Itterbeecke, 2002. Dinosaur egg nests, mammals and other vertebrates from a new Maastrichtian site of the Hateg Basin (Romania). Comptes Rendus Palevol. 1(3), 173-180.

unnamed averostran (Hooijer, 1968)
Cenomanian-Santonian, Late Cretaceous
Qalamoun hill, Syria
Material- (cast AMNH 8254) distal left tibia (110 mm transversely)
Comments- Found "some time before" 1965, Hooijer (1968) believed this to probably come from Carcharodontosaurus or Erectopus, considering both to be megalosaurids. Carrano et al. (2012) referred it to Tetanurae based on the distal compression (110x55 mm), but an equal amount is present in Elaphrosaurus and some abelisaurs.  Note while no figures exist in the paper, a photo in posterior view of the cast AMNH 8254 is on the AMNH online collections.  No mention of a repository exists in the paper, although Hooijer is listed as working at the Rijksmuseum van Natuurlijke Historie, which has since become the Naturalis Biodiversity Center.  Unfortunately, the latter has no record of ever acquiring it (den Ouden, pers. comm. 5-2023), so its location is unknown.  Similarly, the AMNH has no record of the repository of the original, date collected or dtate when the cast was received (Mehling, pers. comm. 5-2023).  A 3D model was recently uploaded to MorphoSource (AMNH online 2024).
References- Hooijer, 1968. A Cretaceous dinosaur from the Syrian Arab Republic. Koninklijke Nederlandse Akademie van Wetenschappen - Amsterdam, Proceedings Series B. 71, 150-152.
AMNH 2007 online. http://research.amnh.org/paleontology/search.php?action=detail&specimen_id=51261
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.
AMNH 2024 online. https://www.morphosource.org/concern/media/000599253

undescribed Averostra (Kellner, Mirzaie Ataabadi, Dalla Vecchia, de Paulo Silva and Pourbagheban, 2003)
Oxfordian-Hauterivian, Late Jurassic-Early Cretaceous
Ravar Formation, Ab Bid Syncline, Iran
Material- ?(Geological Survey of Iran coll.) limb bone shaft (Kellner, Dalla Vecchia, Mirzaie Ataabadi, de Paula Silva and Khosravi, 2012)
(MN 7271-V) lateral tooth (36x17x7 mm) (Kellner, Mirzaie Ataabadi, Dalla Vecchia, de Paulo Silva and Pourbagheban, 2003)
Comments- Note that while Kellner et al. (2003) initially identified the stratigraphy as "the uppermost part of the Bidou Formation" based on the 1995 Geological Map of Iran, "according to the recent revision of the Jurassic stratigraphy of the southern Tabas Block (Wilmsen et al. 2009) they come from the Ravar Formation" (Kellner et al., 2012). 
Discovered in September 2002, Kellner et al. (2012) noted that "At least one of the specimens represents the cortex of a long bone that due to its comparatively small thickness most likely belonged to a medium-sized theropod dinosaur."  The tooth has 3.5 serrations per mm mesially and 3 serrations per mm distally.  Serrations are described as "straight, longer than wide, and chisel-like" with "blood grooves ... present as faint impressions, curved towards the basal part of the tooth."  Besides excluding obviously apomorphic taxa like spinosaurids, carcharodontosaurines and tyrannosaurids, Kellner et al. (2012) could not specify its relationships further among theropods.  Given its size comparable to Allosaurus or Gorgosaurus and age, comparisons should be made with ceratosaurids, megalosaurids, non-carcharodontosaurine carnosaurs, megaraptorans and basal tyrannosauroids.
References- Dalla Vecchia, Mirzaie Aatabadi, Kellner, Jafarian, de Paula Silva, Seyfori, Medadi, Pourbagheban and Khosravi, 2003. Ricerca di dinosauri in Iran. Abstract Book Giornate di Paleontologia 2003, 12.
Kellner, Mirzaie Ataabadi, Dalla Vecchia, de Paulo Silva and Pourbagheban, 2003. Theropod dinosaurs from Iran. Simposio Brasileiro de Paleontologia de Vertebrados III, 34.
Mirzaie Ataabadi, Kellner, Dalla Vecchia and de Paula Silva, 2005. Palaeoichnology and palaeontology of dinosaurs in north of Kerman, south east central Iran. Geosciences. 14(54), 36-47.
Kellner, Dalla Vecchia, Mirzaie Ataabadi, de Paula Silva and Khosravi, 2012. Review of the dinosaur record from Iran with the description of new material. Rivista Italiana di Paleontologia e Stratigrafia. 118(2), 261-275.

unnamed averostran (Schulp, Hanna, Hartman and Jagt, 2000)
Maastrichtian, Late Cretaceous
Al-Khawd, Al-Khod Conglomerate Formation, Oman
Material- (SQU-2-7) (~6-7 m) ~second caudal centrum (92 mm)
Comments- Discovered in 1997, Schulp et al. (2000) described this as much stouter than Majungasaurus, Spinosaurus, Allosaurus or Carcharodontosaurus.  The centrum is slightly amphicoelous, 106% taller than wide, with a broad median ventral ridge and no pleurocoels.  The authors based the position and total length estimates off of Allosaurus.
Reference- Schulp, Hanna, Hartman and Jagt, 2000. A Late Cretaceous theropod caudal vertebra from the Sultanate of Oman. Cretaceous Research. 21, 851-856.

undescribed Averostra (Nessov, 1995)
Mid-Late Turonian, Late Cretaceous
Bissekty Formation, Uzbekistan
Material- (CCMGE 450/12457) partial braincase (Nessov, 1995)
several braincase fragments (Sues and Averianov, 2004)
Comments- Nessov (1995) figured CCMGE 450/12457 as a "relatively large carnosaur". Sues and Averianov (2004) referred several braincases to Itemirus, but these were not mentioned in Sues and Averianov's (2014) resulting revision of the genus. Sues (pers. comm. 2014) stated these were fragments that showed few diagnostic features once prepared, so their identification remains uncertain. Nessov also tentatively referred a basisphenoid fragment (CCMGE 719/12457) to a segnosaur, but Sues and Averianov (2016) stated it was "too fragmentary for more precise taxonomic identification beyond Theropoda." Given the age and location, all of these are probably coelurosaurs.
References- Nessov, 1995. Dinosaurs of Northern Eurasia: New data about assemblages, ecology, and paleobiogeography. Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg. 1-156.
Sues and Averianov, 2004. Dinosaurs from the Upper Cretaceous (Turonian) of Dzharakuduk, Kyzylkum Desert, Uzbekistan. Journal of Vertebrate Paleontology. 24(3), 51A-52A.
Sues and Averianov, 2014. Dromaeosauridae (Dinosauria: Theropoda) from the Bissekty Formation (Upper Cretaceous: Turonian) of Uzbekistan and the phylogenetic position of Itemirus medullaris Kurzanov, 1976. Cretaceous Research. 51, 225-240.
Sues and Averianov, 2016 (online 2015). Therizinosauroidea (Dinosauria: Theropoda) from the Upper Cretaceous of Uzbekistan. Cretaceous Research. 59, 155-178.

undescribed averostran (Godefroit, Sinitsa, Dhouailly, Bolotsky, Sizov, McNamara, Benston and Spagna, 2014)
Aalenian, Middle Jurassic
Ukureyshaya Formation, Russia
Holotype-(INREC K coll.) (medium-sized) tooth
Comments- Godefroit et al. (2014) report that besides the numerous specimens of Kulindadromeus preserved in the Kulinda bonebeds, only a single shed theropod tooth is present. Two specimens were referred to Theropoda by Alifanov- PIN 5435/51 (distal caudal vertebrae with associated scales) and a specimen that consists of three distal metapodials, phalanges and scales. These were later named Lepidocheirosaurus by Alifanov and Saveliev (2015), but one and probably both are Kulindadromeus specimens (see entry).
References- Alifanov, 2014. The discovery of Late Jurassic dinosaurs in Russia. Doklady Earth Sciences. 455(2), 365-367.
Godefroit, Sinitsa, Dhouailly, Bolotsky, Sizov, McNamara, Benston and Spagna, 2014. A Jurassic ornithischian dinosaur from Siberia with both feathers and scales. Science. 345(6195), 451-455.
Alifanov and Saveliev, 2015. The most ancient ornithomimosaur (Theropoda, Dinosauria), with cover imprints from the Upper Jurassic of Russia. Paleontological Journal. 49(6), 636-650.

undescribed Averostra (Averianov, Skutschas, Danilov, Krasnolutskii and Martin, 2014)
Bathonian, Middle Jurassic
Upper Itat Formation, Russia
Material- teeth
Reference- Averianov, Skutschas, Danilov, Krasnolutskii and Martin, 2014. Non-mammalian vertebrate assemblage from the Middle Jurassic of Berezovsk Quarry in western Siberia. Journal of Vertebrate Paleontology. Program and Abstracts 2014, 83.

unnamed Averostra (Kurzanov, Efimov, and Gubin, 2003)
Callovian-Oxfordian, Middle Jurassic-Late Jurassic
Djaskoian Formation, Russia
Material- (PIN 4874/2) six teeth (10-15 mm)
Comments- These were referred to Allosaurus sp. by Kurzanov et al. (2003) because they were said to be similar to "Labrosaurus" stechowi and "Labrosaurus" (=Ceratosaurus) sulcatus, and the type species of Labrosaurus (L. lucaris) is a junior synonym of Allosaurus. However, the Djaskoian teeth appear to lack the distinctive fluting found in "L." stechowi and C. sulcatus (which are both ceratosaurids), while L. lucaris doesn't preserve teeth. Carrano et al. (2012) believed they could not be identified past Theropoda indet..
References- Kurzanov, Efimov, and Gubin, 2003. New archosaurs from the Jurassic of Siberia and Mongolia. Paleontological Journal. 37(1), 53-57.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

unnamed possible averostran (Riabinin, 1937)
Late Barremian-Mid Aptian, Early Cretaceous
Mogoito Member of Murtoi Formation, Russia
Material- distal metapodial or phalanx
Comments- A distal phalanx was discovered in 1931 and referred to Theropoda indet. by Riabinin (1937). Nessov (1995) considered this to be a possibly sauropod metapodial or phalanx. Averianov et al. (2003) referred it to Therizinosauridae based on the unequally deep collateral ligament pits, but Zanno (2008) noted both sides having well defined pits (albeit better developed on one side) is unlike therizinosaurs. Whether this specimen is indeed a theropod at all is still uncertain.
References- Riabin, 1937. A new discovery of dinosaurs in Transbaikalia. Ezhegodnik Vsesoyuznogo Paleontologicheskogo Obshchestva. 11, 141-144.
Nessov, 1995. Dinosaurs of nothern Eurasia: New data about assemblages, ecology, and paleobiogeography. Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg. 1-156.
Averianov, Starkov and Skutschas, 2003. Dinosaurs from the Early Cretaceous Murtoi Formation in Buryatia, Eastern Russia. Journal of Vertebrate Paleontology. 23(3), 586-594.
Zanno, 2008. A taxonomic and phylogenetic reevaluation of Therizinosauria (Dinosauria: Theropoda): Implications for the evolution of Maniraptora. PhD Thesis. The University of Utah. 329 pp.

unnamed averostran (Watabe, Tsogtbaatar, Uranbileg and Gereltsetseg, 2004)
Late Jurassic
Dariv Formation, Mongolia
Material- (IGM 107/5) (skull ~354 mm) maxillary fragments, dentary fragments, teeth (FABL 11.1, 9.8, 11, 12.7, 8.5, 10.5, 10 mm)
Comments- Watabe et al. (2004) note "the articulated lower and upper jaws of theropod with teeth" were found between Juily 25 to August 17 in the Dariv Formation.  The specimen was described by Watabe et al. (2006) as Theropoda indet., though they stated "the maxillary and dentary ziphodont teeth of this specimen suggest that the specimen belongs to a basal tetanuran theropod", comparing it favorably to Monolophosaurus and sinraptorids.  Yet it is also similar to e.g. ceratosaurids, so might be more properly considered Averostra indet..
References- Watabe, Tsogtbaatar, Uranbileg and Gereltsetseg, 2004. Report on the Japan - Mongolia Joint Paleontological Expedition to the Gobi desert, 2002. Hayashibara Museum of Natural Sciences Research Bulletin. 2, 97-122.
Watabe, Tsogtbaatar and Barsbold, 2008. First discovery of a theropod (Dinosauria) from the Upper Jurassic in Mongolia and its stratigraphy. Paleontological Research. 12(1), 27-36.

undescribed averostran (Gubin and Sinitza, 1996)
Late Jurassic
Shar Teg Formation, Mongolia
Material- (PIN coll.) tooth
Reference- Gubin and Sinitza, 1996. Shar Teg: A unique Mesozoic locality of Asia. In Morales (ed.). The Continental Jurassic. Museum of Northern Arizona Bulletin. 60, 311-318.

undescribed Averostra (Eberth, Kobayashi, Lee, Mateus, Therrien, Zelenitsky and Norell, 2009)
Santonian-Campanian?, Late Cretaceous
Javkhlant Formation, Mongolia
Comments- Eberth et al. (2009) noted "small nonavian theropod dinosaur skeletal remains" and "several taxa of variously-sized theropod dinosaurs" from the Javkhlant Formation, of which only Albinykus has been described so far. Based on their location and age, these are probably all coelurosaurs.
Reference- Eberth, Kobayashi, Lee, Mateus, Therrien, Zelenitsky and Norell, 2009. Assignment of Yamaceratops dorngobiensis and associated redbeds at Shine Us Khudag (eastern Gobi, Dorngobi Province, Mongolia) to the redescribed Javkhlant Formation. Journal of Vertebrate Paleontology. 29(1), 295-302.

Averostra indet. (Young, 1942)
?
Shaanxi or Gansu, China
Material- (IVPP V192) (~8 m) partial anterior dorsal centrum
(IVPP V204) partial jugal
(IVPP V209) postorbitals
Comments- Young (1942) in his "description of other fragmentary bones" states "As mentioned above there are a series of cranial and post-cranial bones, mostly fragmentary, which cannot be attributed to a definite systematic position with certainty", which seems to reference "A few fragments of vertebrate fossils recovered also by us during the same trip in Shensi and Kansu", now known as Shaanxi and Gansu.  Thus there is no stratigraphic data recorded.
Young (1942) describes IVPP V192 as "An anterior part of a centrum with the breadth 81 mm., middle constriction 50 mm" and notes that "In ventral aspect, there is a prominent ridge developed" which would make it an anterior dorsal in most theropods.  Its size is comparable to Neovenator's type (first dorsal 84 mm wide anteriorly and 50 mm wide at constriction).  It was stated to "fit in size with Chienkosaurus ceratosauroides", but not explicitly referred and instead regarded as "Probably a dorsal vertebra of a Theropoda."
Young (1942) states that "One other much bigger bone suggests a part of jugal" in reference to IVPP V204, the size comparison being to IVPP V209.
For IVPP V209, Young (1942) states "Of the cranial element there are two bones with the proximal end expanded and thick. The beam narrows distally but the tip is broken. There is a ridge developed at the proximal external part. They can be bestly regarded as the postorbital. Size fits with the big Theropeda described above" [Szechuanosaurus and Chienkosaurus].  The ridge suggests a postorbital boss as in metriacanthosaurids, carcharodontosaurids and tyrannosaurids.
Reference- Young, 1942. Fossil vertebrates from Kuangyuan, N. Szechuan, China. Bulletin of the Geological Society of China. 22(3-4), 293-309.

undescribed Averostra (Dong, Zhou and Zhang, 1983)
Aalenian, Middle Jurassic
Xintiangou Formation, Sichuan, China
Comments- Dong et al. (1983) stated "Vertebrate occurrences ... in the Xintiangou Fm., as they consist merely of ... Carnosauria ...", written long before the Laojun Village deposits yielding "Yunyangosaurus" were discovered in 2016.  This may refer to IVPP V893, referred to Carnosauria indet. by Liu and Yeh (1957; here identified as an afrovenatorine) and possibly from the contemporaneous Qianfoya Formation.
References- Liu and Yeh, 1957. Two new species of Ceratodus from Szechuan, China. Vertebrata PalAsiatica. 1(4), 305-311.
Dong, Zhou and Zhang, 1983. Dinosaurs from the Jurassic of Sichuan. Palaeontologica Sinica. Whole Number 162, New Series C, 23, 136 pp.

undescribed Averostra (Hao, Zhang, Peng and Ye, 2022)
Bajocian, Middle Jurassic
Qinglongshan, Xiashaximiao Formation, Sichuan, China
Material- (ZDM coll.) five teeth (~30x~15x? mm)
Comments- The Qinglongshan fossils were excavated in March 1995, April 1999 and May-June 2019.  Hao et al. (2022) note "scattered theropod teeth that are laterally flat, distally curved along the crown, have a distal edge thinner than the mesial edge, and are serrated along both edges."  They suggest "These characteristics suggest that the teeth are those of an indeterminate carnivore theropod, and similar in size to those of Szechuanosaurus" and list a preliminary identification of "Szechuanosaurus?". 
Reference- Hao, Zhang, Peng and Ye, 2022. Discovery of a new Middle Jurassic dinosaur site in Sichuan, China. Acta Geologica Sinica (English Edition). 96(1), 52-60.

unnamed averostran (Camp, 1935)
Middle Jurassic?
Jung-Hsein UCMP V1501, middle Chongqing Group, Sichuan, China
Material- (UCMP 32102) (~14.7 m) mesial dentary tooth (~69x~22x? mm), rib fragment, ischial fragment, femoral fragment (~1.33 m)
Comments- The specimen was collected on August 30 1915 by Louderback.  Note the UCMP locality number is V1501 (as determined in their online catalog), not V151 as listed by Camp.  Jung-Hsien is now called Rongxian, a county in Zigong City.  Camp stated "The beds in which they occur have been called the Szechuan series", which was a term for the stratigraphic section from the Early Jurassic Qianfuyan (= Tsienfuyan) Formation and Ziliujing (= Tsuliuching, = Tzeliutsin) Formation to the Cretaceous Chengqiangyan (= Chengtsiangyen) Group and Jiading (= Chiating, = Tshiating) Group, depending on north versus south in the Sichuan Basin. Rongxian is located in the south, so UCMP V1501 would be part of the Ziliujing-Chongqing-Jiading sequence, and Young (1937; see also Young et al., 1943) placed it above the Ziliujing Formation but below the conglomerates of the Jiading Group, and thus within the Middle-Late Jurassic Chongqing Group.  Furthermore, Young (1937) stated "The fossiliferous horizon discovered by Louderback lies probably between our horizons 2 and 3, some 200 meters above horizon 2" which is the type locality of Omeisaurus junghsiensis.  As Omeisaurus is generally recovered in the Xiashaximiao Formation and horizon 3 is another 300 meters above where Young placed UCMP V1501 (so may be the Penglaizhen or Suining Formation), UCMP 32102 may derive from the Shangshaximiao Formation.  Dong et al. (1983) listed it as deriving from that formation, perhaps using the same logic although they did not describe any explanation.
Camp (1935) initially referred the specimen to Megalosauridae because histology "shows quite definitely that the relationship of the Chinese form is with Allosaurus" instead of Tyrannosaurus.  However, the plate shows this is because the sampled section of Tyrannosaurus femur (labeled AMNH 5886, but this is the Anatotitan paratype, and it is more probably Dynamosaurus holotype AMNH 5866 that is known to be histologically sampled) is composed of secondary osteons, while those of Allosaurus and UCMP 32102 are fibrolamellar bone.  Yet Allosaurus can develop secondary osteons where bone is redeveloped as well (e.g. MHNG GEPI V2567a), so this isn't a real difference between these taxa.  While Camp wrote "a projection of the borders would indicate an original total length of at least 90 mm" for the tooth, he also repeated Osborn's 1906 statement that Tyrannosaurus (CM 9380 and NHMUK R7994) teeth are up to 125 mm, which includes the root.  Combined with his statement the serrated distal carina "reaches the base of the enamel" and serrations are not illustrated on the most basal section, the actual crown length would have been about 69 mm.  Similarly, Camp wrote "At the base it is 17 mm. in longest diameter", but scaling the figured tooth to the stated preserved length of 60 mm results in a FABL of 22 mm instead.  Young (1942) later wrote "The general structure of [Szechuanosaurus campi syntype] V236 with the way of serrations fits so well with the Junghsien tooth, we feel that there is practically no doubt in regarding them as identical" "and prefer to consider the Junghsien tooth as belonging also to the new form" Szechuanosaurus.  This despite previously stating UCMP 32102 "is bigger and straighter than all" Szechuanosaurus syntype teeth.  Compared to Sinraptor dongi and Szechuanosaurus, UCMP 32102 is larger (~69 vs. up to 63 vs. ~32 and ~47 mm), with a much greater crown height/base ratio (~314% vs. up to 244% vs. ~224% and ~267%), making it less tapered.  The crown section is similar to Allosaurus' fourth dentary tooth and the mid crown ratio of 53% is similar to dentary teeth in S. dongi and between S. campi IVPP V238B and 238C.  As in mesial teeth of S. dongi, the crown is slightly lingually curved and the mesial carina does not reach the crown base.  The same serration densities (mesial 15 per 5 mm, distal 6.7-10 per 5 mm) can be found in S. dongi as well, but are lower than S. campi (distal ~12-19 per 5 mm).  Dong et al. (1983) wrote "Camp's description and the dentition size suggests it may be assignable to Yangchuanosaurus", but it is larger than even the magnus type (up to 75 mm), and more elongate than the largest maxillary teeth of the genotype (crown height/base ratio of 267%), but detailed dental statistics of the genus have yet to be published.  The femoral fragment is notably large, Camp stating the shaft has "an enormous hollow cavity about 125 mm. in the longest diameter of its ellipse. The greatest diameter of this segment at its narrowest point is 20 cm."  Based on the absence of a fourth trochanter or medial narrowing, the section is just distal to the former structure.  Here large theropod femoral shafts are wider than deep, so 200 mm would be the width and the figured depth is then ~143 mm.  Scaling from the largest metriacanthosaurid, Yangchuanosaurus magnus, results in a femoral length of ~1.33 meters, not far from Camp's "estimated total length of about 140 cm."  The ischium "consists of a moderately hollow shaft spreading into a broader, solid plate", which could describe most non-maniraptoran ischia, while the "tip of a large rib" is not described.  Notably, the ischium was found 37 meters from the other material, so its association is less certain.
Given the above information, UCMP 32102 is different from the Szechuanosaurus syntypes and anteriorly straighter than Sinraptor as well, and is perhaps the largest known Jurassic theropod.  As no characters are outside the range of ceratosaurids, it is considered Averostra incertae sedis here.
References- Camp, 1935. Dinosaur remains from the province of Szechuan. University of California Publications, Bulletin of the Department of Geological Sciences. 23(14), 467-471.
Louderback, 1935. The stratigraphic relations of the Jung Hsien fossil dinosaur in Szechuan red beds of China. University of California Publications. Bulletin of the Department of Geological Sciences. 23(14), 459-466.
Young, 1937. New Triassic and Cretaceous reptiles in China (With some remarks concerning the Cenozoic of China). Bulletin of the Geological Society of China. 17(1), 109-120.
Young, 1942. Fossil vertebrates from Kuangyuan, N. Szechuan, China. Bulletin of the Geological Society of China. 22(3-4), 293-309.
Young, Bien and Mi, 1943. Some geologic problems of the Tsinling. Bulletin of the Geological Society of China. 23(1-2), 15-34.
Dong, Zhou and Zhang, 1983. Dinosaurs from the Jurassic of Sichuan. Palaeontologica Sinica. Whole Number 162, New Series C, 23, 136 pp.

undescribed Averostra (Young and Chow, 1953)
Middle-Late Jurassic(?)
Chongqing Group?, Sichuan, China
Material- (IVPP V712) (~3 m) two dorsal vertebrae (53 mm)
Middle-Late Jurassic
Chongqing Group, Jianyang, Sichuan, China
(IVPP V713) (~8 m) two femoral fragments (distal transverse width 210 mm) (~940 mm)
Comments- These were discovered "during the construction of the Chengtu-Chungking Railway mainly in 1951" and/or "during the clearing away the building foundation in Tatienwan, a suburb of Chungking."  The latter is "generally acccepted as Chungking Series of Cretaceous age" according to Young and Chow (1953), today called the Chongqing Group and considered of Middle-Late Jurassic age.  Most of the sediments exposed on the surface between Chongqing and Chengdu are also Jurassic, so fossils discovered constructing the railway between them are likely also from the Chongqing Group.  Young and Chow referred both to Carnosauria indet..
Young and Chow called the two dorsals "A small form", stated "Exact locality unknown" and "think more probable to regard these as belonging to carnivorous dinosaur."  Their length suggests an individual about 3 meters long, so would probably be a young specimen if their referral to Carnosauria sensu Huene is correct (i.e. a megalosauroid or carnosaur), or it may be an elaphrosaurine or coelurosaur.
Young and Chow called the femoral fragments "A large form" and stated "Its slenderness suggests a carnosaurian" and that the "Transversal breadth of the distal end, 210 mm."  The latter is very similar to Sinraptor dongi's holotype femur's distal width of 195 mm, which would make its length 943 mm if scaled identically.  This suggests a neoceratosaur, megalosauroid or carnosaur.  They also state one of the fragments "bears the label indicating Chien Yang district", now known as Jianyang.
References- Young and Chow, 1953a. New fossil reptiles from Szechuan, China. Acta Palaeontologica Sinica. 1(3), 87-109.
Young and Chow, 1953b. New fossil reptiles from Szechuan, China. Acta Scientia Sinica. 2(3), 216-243.

unnamed Averostra (Dong, 1993)
Bathonian-Callovian, Middle Jurassic
Toutunhe Formation, Xinjiang, China
Material- (IVPP coll.) two teeth, several limb elements including pedal phalanx (?)I-1, two unguals including manual ungual (?)II
Comments-  This material was discovered in the same quarry as Tianchisaurus in 1974, with some of it figured by Dong (1993) as Megalosauridae indet..  As Maisch and Matzke (2003) noted, "There appears little reason for the assignment of this material to the Megalosauridae as proposed by DONG (1993), because it could equally well represent an allosauroid."  Their identifications of the phalangeal elements as listed here are plausible. 
References- Dong, 1993. An ankylosaur (ornithischian dinosaur) from the Middle Jurassic of the Junggar Basin, China. Vertebrata PalAsiatica. 31, 257-266.
Maisch and Matzke, 2003. Theropods (Dinosauria, Saurischia) from the Middle Jurassic Toutunhe Formation of the southern Junggar Basin, NW China. Palaeontologische Zeitschrift. 77(2), 281-292.

Averostra indet. (Dong, 1973)
Middle-Late Juarssic
Kizinur Valley, Kuqa, Xinjiang, China
Material- (IVPP V3013; field number 993) tooth (45x~15x? mm)
Comments- Dong (1973) briefly describes and figures this tooth, discovered in 1956.  The photo shows the typical recurved megalosaur-grade tooth, which Dong states has small mesial and distal serrations. He says the tooth's features are close to that of Chienkosaurus, but merely refers it to Megalosauridae indet..  It is probably a non-coelurosaur tetanurine, but may be ceratosaurid or tyrannosauroid instead.
Reference- Dong. 1973. 新疆库车一肉食龙牙化石 [A fossil carnosaur tooth from Kuqa county, Xinjiang]. Vertebrata PalAsiatica. 11(2), 217.

undescribed probable averostran (Young, 1958)
Late Jurassic
Machiahukou IVPP locality 5672, Xiangtang Formation, Gansu, China
Material- (IVPP coll.) (small) vertebra
Comments- Discovered with Mamenchisaurus hochuanensis paratype IVPP V946 in Summer 1956, Young (1958) mentions this as "a small vertebra of probably a theropod from Machiahukou."  As shown by his Figure 2, this is located about 200 meters northwest of Haishiwanzhen.  Weishampel (1990) lists this as the Hantong Formation in the Oxfordian, both stratigraphy and age credited to "Dong pers. comm.", but Dong (1992) and most other sources list it as the Late Jurassic Xiangtang Formation. 
References- Young, 1958. New sauropods from China. Vertebrata Palasiatica. 2(1), 1-29.
Weishampel, 1990. Dinosaurian distribution. In Weishampel, Dodson and Osmolska (eds.). The Dinosauria. University of California Press. 63-139.
Dong, 1992. Dinosaurian Faunas of China. Ocean Press/Springer-Verlag. 188 pp.

undescribed averostran (Xu, Zheng, Sullivan, Wang, Xing, Wang, Zhang, O'Connor, Zhang and Pan, 2015)
Oxfordian, Late Jurassic
Tiaojishan Formation, Hebei, China
Material- (IVPP V20796) (small) skeleton
Reference- Xu, Zheng, Sullivan, Wang, Xing, Wang, Zhang, O'Connor, Zhang and Pan, 2015. A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings. Nature. 521, 70-73.

unnamed Averostra (Maisch, Matzke, Pfretzschner, Ye and Sun, 2001)
Oxfordian, Late Jurassic
Qigu Formation, Xinjiang, China
Material- (GPIT SGP 2000/1) anterolateral tooth (43x18x12 mm) (Maisch, Matzke, Pfretzschner, Ye and Sun, 2001)
(GPIT SGP 2000/2) distal (?)ischium (Maisch, Matzke, Pfretzschner, Ye and Sun, 2001)
(GPIT SGP 2001/1) lateral tooth (~75x25.5x15.5 mm) (Maisch and Matzke, 2003)
(GPIT SGP 2001/2) lateral tooth (65.5x23.5x13.5 mm) (Maisch and Matzke, 2003)
(GPIT SGP 2001/3) incomplete anterolateral tooth (Maisch and Matzke, 2003)
(GPIT SGP 2001/4) anterior dentary tooth (~45x17x12.5 mm) (Maisch and Matzke, 2003)
(GPIT SGP 2001/5) incomplete tooth (16+x9.5x5 mm) (Maisch and Matzke, 2003)
(PMOL-SGP 2004/2) (multiple individuals) tooth fragments (Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015)
(PMOL-SGP 2005/1) tooth (18 mm) (Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015)
Comments- Maisch et al. (2001) figured GPIT SGP 2000/1 as a carnosaur tooth. Maisch and Matzke (2003) described this and four teeth from another locality as Carnosauria sensu lato indet., stating "there are no striking features to indicate that they are derived from more than one form."  Discovered in 2000, Maisch et al. (2001) labeled GPIT SGP 2000/2 the fibula of a coelurosaur sensu Huene. Maisch and Matzke (2003) believed it was most similar to Sarcosaurus and Coelophysis rhodesiensis based on the anteroproximal inclination of the distal articular facet, referring it to Coelophysoidea or basal Coelurosauria.  However, the element is dissimilar from theropod fibulae in being significantly and gradually expanded distally, so it is proposed here to be a distal ischium instead (e.g. compare to Guanlong). The tooth GPIT SGP 2001/5 was assigned to Coelophysoidea by Maisch and Matzke based on the large number of serrations (33-37/5mm) and otherwise plesiomorphic morphololgy, but this is unlikely for a Late Jurassic taxon so it is here retained as Averostra indet. pending study.  Augustin et al. (2020) revised their stratigraphic assignment from the Toutunhe Formation to the overlying Qigu Formation, questionably referring the large teeth to Metriacanthosauridae based on geography although they did not distinguish them from other carnosaurs, megalosaurids or ceratosaurids.  They stated the small tooth "probably represents a coelurosaur based on the geological age of the specimen."
References- Maisch, Matzke, Pfretzschner, Ye and Sun, 2001. The fossil vertebrate faunas of the Toutunhe and Qigu Formations of the southern Junggar Basin and their biostratigraphical and palecological implications. In Sun, Mosbrugger, Ashraf and Wang (eds.). The Advanced Study of Prehistory Life and Geology of Junggar Basin, Xinjiang, China. 83-94.
Maisch and Matzke, 2003. Theropods (Dinosauria, Saurischia) from the Middle Jurassic Toutunhe Formation of the southern Junggar Basin, NW China. Palaeontologische Zeitschrift. 77(2), 281-292.
Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015. Dinosaur teeth from the Jurassic Qigu and Shishugou Formations of the Junggar Basin (Xinjiang/China) and their paleoecologic implications. Palaontologische Zeitschrift. 89(3), 485-502.
Augustin, Matzke, Maisch and Pfretzschner, 2020. A theropod dinosaur feeding site from the Upper Jurassic of the Junggar Basin, NW China. Palaeogeography, Palaeoclimatology, Palaeoecology. 560, 109999.

unnamed Averostra (Russell and Zheng, 1990)
Late Callovian-Early Oxfordian, Middle-Late Jurassic
Jiangjunmiao, Lower Shishugou Formation, Xinjiang, China
(IVPP coll.) (small) fragmentary skeleton (Dong, 1992)
Late Callovian-Early Oxfordian, Middle-Late Jurassic
Pingfengshan, Lower Shishugou Formation, Xinjiang, China
(IVPP coll.) (small) skeletons (Russell and Zheng, 1990)
Late Callovian-Early Oxfordian, Middle-Late Jurassic
Wucaiwan, Lower Shishugou Formation, Xinjiang, China
(IVPP V15858) incomplete tooth (~35x~15x8.0 mm) (Han, Clark, Xu, Sullivan, Choiniere and Hone, 2011)
Late Oxfordian, Late Jurassic
Giant's Tomb, Upper Shishugou Formation, Xinjiang, China
Material- (IVPP coll.; not collected?) (large) femur (Wings, Schwarz-Wings and Fowler, 2011)
(PMOL-SGP 2006/2) lateral tooth (46 mm) (Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015)
(PMOL-SGP 2006/3) lateral tooth (17 mm) (Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015)
(PMOL-SGP 2006/4) anterior tooth (15 mm) (Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015)
Late Oxfordian, Late Jurassic
Pingfengshan, Upper Shishugou Formation, Xinjiang, China
(IVPP coll.) elements including unguals (Russell and Zheng, 1990)
Late Oxfordian, Late Jurassic
TBB 2002, Wucaiwan, Upper Shishugou Formation, Xinjiang, China
?(IVPP V15302) specimen lacking skull and forelimbs but preserving seventh cervical vertebra, four anterior dorsal vertebrae, several posterior dorsal vertebrae, several dorsal ribs, sacrum, first-~twenty-first caudal vertebrae, nine chevrons, ilium (~179 mm), ischium and incomplete femur (Eberth, Xu and Clark, 2010)
Comments- Dong (1992) notes in 1988 before July, the Sino-Canadian expedition collected "small theropods" in Xinjiang.  Dong (1993) specified "In May 1989, a party under X.-J. Zhao (IVPP), D. Brinkman (Royal Tyrrell Museum of Palaeontology, RTMP), and D. Russell (Canadian Museum of Nature, CMN) established a camp near the Pingfengshan locality in the Wucaiwan region" and "Small theropod skeletons discovered the previous year were collected."  Similarly, Russell and Zheng (1990) said "The lower part of the Shishugou Formation yielded ... the skeleton of a small theropod discovered during the 1988 season" at Pingfengshan that was excavated in 1989.
Russell and Zheng (1990) also reported "Isolated theropod bones, including claws, were found in the higher levels of this formation" collected at Pingfengshan in 1989.
Zhao and Currie (1994) mention "an unidentified small theropod" from the same horizon as Monolophosaurus, which they called the Wucaiwan Formation but has since been joined with the Shishugou Formation.  This is probably the same as "A very fragmentary specimen of a small theropod that could be new" excavated by the Sino-Canadian expedition in 1987 mentioned by Dong (1992) and listed as "Coelurosauria indet." 
Eberth et al. (2010) note a skeleton discovered in 2002 as "a third, unidentified taxon that is neither tyrannosauroid nor ceratosaur" and thus not Guanlong or Limusaurus.  They call it "undescribed small theropod" and figure it in situ.  The low dorsal neural spines, squared postacetabular process, slender and distally expanded ischium and slender unexpanded chevrons through caudal eleven suggest something compsognathid grade, so perhaps this is an adult Aorun.  Notably the distal caudal prezygapophyses are deep and ~80% of centrum length, inviting comparison to coelophysoids and ornithomimosaurs when the previous characters are considered.  Either identification would be notable temporally.  Stiegler (2019) calls it "an as yet unidentified theropod without a skull or forelimbs" and states "no vertebrae anterior to C7 are preserved with V15302..." 
Discovered by the Sino-American expeditions between 2001 and 2010, IVPP V15858 is called Morphotype 3 by Han et al. (2011), who refer it to a ceratosaur, basal tetanurine or basal tyrannosauroid.
Wings et al. (2011) reported that in April 2006 "our excavation was cancelled prematurely after only nine field days and several partially exposed bones (e.g., ... a large theropod femur) had to remain in the field at the "Giant’s Tomb" site", but in Summer 2006 the quarry "has been excavated by a field crew from the IVPP (Institute of Vertebrate Paleontology and Paleoanthropology, Beijing), led by Xu Xing."  Whether the femur was excavated by the IVPP is unknown.  From the upper horizon, "theropod and sauropod teeth which will be published elsewhere" noted in 2011 were catalogd as PMOL-SGP 2006/2-4 and described as Theropoda Familia indet. by Wings et al. (2015).  PMOL SGP 2006/2 and 2006/4 have mesial serrations while in 2006/3 a mesial carina "is not observed on PMOL-SGP 2006/3 (possibly abraded)."  "PMOL-SGP 2006/2-4 possesses 17, 27, and 13 denticles per 5 mm of the distal carina, respectively", suggesting at least 2006/3 is a different taxon than the other two, but in the absence of obvious enamel wrinkles or detailed metrics they are all assigned Averostra here.
References- Russell and Zheng, 1990. The 1989 field season of the Dinosaur Project. Vertebrata PalAsiatica. 28(4), 322.
Dong, 1992. Dinosaurian Faunas of China. Ocean Press/Springer-Verlag. 188 pp.
Dong, 1993. The field activities of the Sino-Canadian Dinosaur Project in China, 1987-1990. Canadian Journal of Earth Sciences. 30(10), 1997-2001.
Grady, 1993. The Dinosaur Project: The Story of the Greatest Dinosaur Expedition Ever Mounted. Macfarlane Walter & Ross and The Ex Terra Foundation. 261 pp.
Zhao and Currie, 1994 (as 1993). A large crested theropod from the Jurassic of Xinjiang, People's Republic of China. Canadian Journal of Earth Sciences. 30(10), 2027-2036.
Eberth, Xu and Clark, 2010. Dinosaur death pits from the Jurassic of China. Palaios. 25(2), 112-125.
Han, Clark, Xu, Sullivan, Choiniere and Hone, 2011. Theropod teeth from the Middle-Upper Jurassic Shishugou Formation of northwest Xinjiang, China. Journal of Vertebrate Paleontology. 31(1), 111-126.
Wings, Schwarz-Wings and Fowler, 2011. New sauropod material from the Late Jurassic part of the Shishugou Formation (Junggar Basin, Xinjiang, NW China). Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 262(2), 129-150.
Wings, Tutken, Fowler, Martin, Pfretzschner and Sun, 2015 (online 2014). Dinosaur teeth from the Jurassic Qigu and Shishugou Formations of the Junggar Basin (Xinjiang/China) and their paleoecologic implications. Palaontologische Zeitschrift. 89(3), 485-502.
Stiegler, 2019. Anatomy, systematics, and paleobiology of noasaurid ceratosaurs from the Late Jurassic of China. PhD thesis, The George Washington University. 693 pp.

Averostra indet. (Young, 1963)
Late Jurassic-Early Cretaceous?
Tiekuling IVPP locality 16611, Jiangxi, China
Material- (IVPP V2691) incomplete tooth (~43x18x? mm)
Comments- Discovered in 1962 or 1963, while reported as being "from Tiekuling, Taiho district, Chiangsi", this is now called Tiahe County, Jiangxi, and the only Google result for 'Tiekuling' is this paper.  Google translates the locality from the Chinese section of text as "Que Pi Ling Water Pond in Taihe County, Jiangxi Province."  No stratigraphic data are given, only that "Its geological age is regarded as late Jurassic or early Cretaceous." 
The tooth is said to have ~14-15 serrations per 5 mm distally near the tip, and a greater density near the base.  While the text states "Total length of the tooth is estimated to be 60 mm", the figure would indicate an estimated length of ~43 mm from the preserved base to their estimated tip.  This makes it comparable in height and FABL to the estimated tenth maxillary tooth of Sinraptor dongi, and the thirteenth maxillary tooth of the latter has 15 serrations per 5 mm near the tip and 20 near the base, also matching IVPP V2691.  Young wrote "the tooth looks very similar to those of Szechuanosaurus found in Kuangyuan", the syntypes of the genus, but its shape doesn't match any of them although the distal serration density falls within their range (~12-19 per 5 mm).  He referred it to Carnosauria gen. et sp. indet..  While the few known details are congruent with a metriacanthosaurid posterior maxillary tooth, they also match ceratosaurid dentition, so IVPP V2691 is placed in Averostra indet. here.
Reference- Young, 1963. Note on a new locality of dinosaurian remains from Taiho, Chiangsi, SE. China. Vertebrata PalAsiatica. 7(1), 48-51.

unnamed averostran (Young, 1935)
Early Cretaceous
Mengyin Formation, Shandong, China
Material- coracoid
Comments- This was initially described by Young (1935) as Sauropoda gen. et sp. indet., but Wilson and Upchurch (2009) suggested "it is quite narrow transversely and probably pertains to a large theropod dinosaur."
References- Young, 1935. Dinosaurian remains from Mengyin, Shantung. Bulletin of the Geological Society of China. 15, 519-533.
Wilson and Upchurch, 2009. Redescription and reassessment of Euhelopus zdanskyi (Dinosauria: Sauropoda) from the Early Cretaceous of China. Journal of Systematic Palaeontology. 7, 199-239.

unnamed Averostra (Cheng and Pang, 1996)
Late Cretaceous
Huiquanpu Formation, Shanxi, China
Material- many teeth
Comments- Discovered between 1989 and 1994, "dozens of teeth of Theropoda" were initially referred to Megalosauridae indet. by Pang et al. (1995) and Cheng and Pang (1996).  The former stated they "are similar to cf. Szechuanosaurus campi Young from the Upper Cretaceous Wangshi Group in Laiyang Basin, Shandong Province", while Pang and Cheng (2001) referred them to cf. Szechuanosaurus campi.  Wu et al. (2020) noted they have much finer serrations (15.8 mesial and 20.5 distal per 5 mm) than Szechuanosaurus (8.5 mesial and less distal) or Young's Shandong teeth (12-13 per 5 mm), so that "the teeth of the KDLQ of HDU also cannot be referred to S. campi."  They also differ from non-eutyrannosaur tyrannosauroid Jinbeisaurus from that formation, which has 16-16.2 serrations per 5 mm on both carinae
References- Pang, Cheng, Yang, Xie, Zhu and Luo, 1995. The principal characters and discussion on its ages of dinosaur fauna in Tianzhen, Shanxi, China. Journal of Hebei College of Geology. 18(supp.), 1-6.
Cheng and Pang, 1996. A new dinosaurian fauna from Tianzhen, Shanxi Province with its stratigraphical significance. Acta Geoscientia Sinica. 17, 133-139.
Pang, Cheng, Yang, Xie, Zhu and Luo, 1996. The preliminary report on Late Cretaceous dinosaur fauna expeditions in Tianzhen, Shanxi. Journal of Hebei College of Geology. 19(3-4), 227-235.
Pang and Cheng, 2001. The Late Cretaceous dinosaur fauna and strata from Tianzhen, Shanxi and Yangyuan, Hebei, China. In Deng and Wang (eds.). Proceedings of the Eighth Annual Meeting of the Chinese Society of Vertebrate Paleontology. China Ocean Press. 75-82.
Wu, Shi, Dong, Carr, Yi and Xu, 2020 (online 2019). A new tyrannosauroid from the Upper Cretaceous of Shanxi, China. Cretaceous Research. 108, 104357.

unnamed Averostra (Hu, 1964)
Turonian, Late Cretaceous
Maortu, Ulanhsuhi Formation, Inner Mongolia, China
Material- (IVPP coll.; type 1) lateral tooth (~32x17x10 mm)
(IVPP coll.; type 1) mesiolateral tooth (~30x?x8 mm)
(IVPP coll.; type 1) lateral tooth (~21x12x7 mm)
(IVPP coll.; type 1) two partial teeth
(IVPP coll.; type 2) lateral tooth (~21x10x5 mm)
Turonian, Late Cretaceous
Tashuikou, Ulanhsuhi Formation, Inner Mongolia, China
Material- (IVPP V2884.8; lost) lateral tooth (45x22x11 mm)
Comments- Hu (1964) collected these isolated teeth in 1960 and referred the Maortu specimens to two morphotypes of Theropoda indet..  Note Hu's table gives "preserved length", but this includes the root as demonstrated by Figures 13 and 14 so that crown length is given here instead.  Type 1 have a crown height ratio of 175-188%, a crown base ratio of 58-59%, 16 serrations per 5 mm on the distal(?) carina and finer serrations mesially.  The mesial tip is said to lack serrations, but this may be due to wear.  Hu states these "resemable [sic], in general form and feature, to that of Szechuanosaurus" but differ in that the latter is said to have "distinct anterior serrations", but at least syntypes IVPP V235 and V236 are stated in Young's description to have more fine mesial serrations as well.  Type 2 has a crown height ratio of 210%, a crown base ratio of 50%, and "distinct serrations are on both anterior and posterior borders."  Hu again says "It is resemable [sic] to those teeth of Szechuanosaurus", in the Chinese section specifically noting the measurements are similar to syntype IVPP V239 - 25x12x7 mm vs. 29x12.5x7 mm.  The shapes in side and basal views are also quite similar, but given the time difference of Kimmeridgian? vs. Turonian, Maortu specimens are highly unlikely to be Szechuanosaurus.  Based on morphology, age and location both Maortu types are likely to be carcharodontosaurids, pantyrannosaurs or eudromaeosaurs.
The Tashuikou tooth was associated with Chilantaisaurus and said by Hu (1964) to be carnosaurian and "most probably belong to the same species."  Benson and Xu (2008) stated "The tooth referred to C. tashuikouensis was not found during the course of this study" and placed it in Theropoda indet..  The crown height ratio is 205%, the crown base ratio is 50% and "There are distinct serrations on front and back borders."  As in the Maortu specimens, it is likely to be carcharodontosaurid, pantyrannosaurian or eudromaeosaurian.
References- Hu, 1964. Carnosaurian remains from Alashan, Inner Mongolia. Vertebrata PalAsiatica. 8, 42-63.
Benson and Xu, 2008. The anatomy and systematic position of the theropod dinosaur Chilantaisaurus tashuikouensis Hu, 1964 from the Early Cretaceous of Alanshan, People’s Republic of China. Geological Magazine. 145(6), 778-789.

unnamed averostran (Hone et al., 2010)
Middle Santonian, Late Cretaceous
Majiacun Formation, Henan, China
Material- (XMDFEC V0010) tooth (52x15x9 mm)
Comments- Hone et al. (2010) refer this to Baryonychinae, though without suggesting any characters diagnostic for spinosaurids or subgroups.  While isolated baryonychine teeth can lack fluting, be this labiolingually compressed, or have serrations this large, Kubota et al. (2017) point out that in the absence of being spinosaurid-like in these ways and lacking enamel sculpture, there is no reason to refer the tooth to Spinosauridae.  It is reassigned to Averostra.
References- Hone, Xu and Wang. 2010. A probable baryonychine (Theropoda: Spinosauridae) tooth from the Upper Cretaceous of Henan Province, China. Vertebrata PalAsiatica. 48, 19-26.
Kubota, Takakuwa and Hasegawa, 2017. Second discovery of a spinosaurid tooth from the Sebayashi Formation (Lower Cretaceous), Kanna Town, Gunma Prefecture, Japan. Bulletin of Gunma Museum of Natural History. 21, 1-6.

unnamed Averostra (Young, 1954a, b)
Late Campanian-Early Maastrichtian, , Late Cretaceous
Xigou, Jiangjunding Formation, Wangshi Group, Shandong, China
Material- (IVPP V756) tooth
(IVPP V757) tooth
(IVPP V758) tooth
(IVPP V759) tooth
(IVPP V760) tooth
(IVPP V761) tooth
(IVPP V764) tooth
(IVPP V765) tooth
(IVPP V766) tooth
Late Campanian-Early Maastrichtian, , Late Cretaceous
near Jingangkou Village, Jiangjunding Formation?, Wangshi Group, Shandong, China
(IVPP V783) tooth
(IVPP V784) tooth
(IVPP V785) tooth
Comments- These specimens were discovered in 1951 and were first reported by Young (1954) as "many teeth representing at least two forms" of Theropoda from the "Wangshih series of the Laiyang region", currently called the Wangshi Group.  Young and Sun (1957) referred to them as "teeth of Laiyang referred to Szechuanosaurus", later calling them "tentatively referred to Szechuanosaurus" and noting their serration density is similar to Kalaza dentary IVPP V903.  Young (1958) figured the teeth and described them in detail, most being from Hsikou (now Xigou) (IVPP V757-761, V764-766; with V756 "from the place not far from the opening of the valley and therefore probably derived from the excavated locality") and three others from "some places near the village Chingkankou" (now Jingangkou).  and referred these to cf. Szechuanosaurus campi because they have mesial serrations unlike Prodeinodon and are larger than Chienkosaurus.  Wu et al. (2020) note these teeth have finer serrations (12-13 per 5 mm) than Szechuanosaurus (8.5 per 5 mm) so "cannot be assigned to S. campi of the Upper Jurassic."  Based on their age, these teeth are more likely tyrannosauroid or dromaeosaurid.
References- Young, 1954a. Fossil reptilian eggs from Laiyang, Shantung, China. Acta Palaeontologica Sinica. 2(4), 371-388.
Young, 1954b. Fossil reptilian eggs from Laiyang, Shantung, China. Scientia Sinica. 3(4), 505-522.
Young and Sun, 1957. Note on a fragmentary carnosaurian mandible from Turfan, Sinkiang. Vertebrata PalAsiatica. 1(2), 2027-2036.
Young, 1958. The dinosaurian remains of Liayang, Shantung. Palaeontologia Sincia. 142(16), 1-138.
Wu, Shi, Dong, Carr, Yi and Xu, 2020 (online 2019). A new tyrannosauroid from the Upper Cretaceous of Shanxi, China. Cretaceos Research. 108, 104357.

undescribed Averostra (Chow and Rozhdestvensky, 1960)
Middle-Late Campanian, Late Cretaceous
Iren Dabasu Formation, Inner Mongolia, China
Material- (AMNH 6376) phalanx II-1 (AMNH online)
(AMNH 6556) metatarsal II (AMNH online)
(AMNH 6744) four caudal vertebrae, 8 distal pedal elements (AMNH online)
(AMNH 6756) metatarsal (AMNH online)
(AMNH 6757) limb fragments, metapodials, phalanx, fragments (AMNH online)
(AMNH 21552) femur
(AMNH 21565) elements
(AMNH 21588)
(AMNH 21774) fibula
(AMNH 21775) pedal phalanx ?II-1
(AMNH 21776) four proximal pedal phalanges
(AMNH 21780) four unguals
(AMNH 21782) manual ungual
(AMNH 21784) four caudal vertebrae
(AMNH 30245) two metatarsal II or IV shafts (AMNH online)
(AMNH 30247) posterior dorsal rib fragment (AMNH online)
(AMNH 30248) proximal anterior rib (AMNH online)
(AMNH 30249) partial coracoid (AMNH online)
(AMNH 30250) distal femur (AMNH online)
(AMNH 30251) proximal femur (AMNH online)
(AMNH 30252) distal femur (AMNH online)
(AMNH 30253) proximal femur (AMNH online)
(AMNH 30254) distal femur (AMNH online)
(AMNH 30255) astragalus (AMNH online)
(AMNH 30256) proximal tibia (AMNH online)
(AMNH 30257) proximal femur (AMNH online)
(AMNH 30258) distal tibia (AMNH online)
(AMNH 30259) proximal metatarsal (AMNH online)
(AMNH 30260) proximal metatarsal (AMNH online)
(AMNH 30298) acetabular fragment (AMNH online)
(AMNH 30299) proximal ischium (AMNH online)
(AMNH 30360) metatarsal III shaft (AMNH online)
(AMNH 80277) distal humerus (AMNH online)
(IVPP or PIN coll.) (small) three partial skeletons (Chow and Rozhdestvensky, 1960)
(IVPP and PIN coll.) <400 specimens (Currie and Eberth, 1993)
Comments- The AMNH specimens listed here are from the online catalog, which generally lacks identification for ranks between order and family so that Theropoda indet. material is listed as Saurischia.  Yet none of the specimens are likely to be sauropods given Gilmore (1933) never mentioned finding any and to this day only a few elements have been reported (4 in the Erenhot Dinosaur Museum coll., 7 from the Sino-Soviet expedition- Currie and Eberth, 1993; Sonidosaurus).  Most would have been found during the April 22 to May 25 1923 Central Asiatic Expedition, AMNH 6556 on April 30.  The online catalog also specifies AMNH 6756 was discovered in AMNH site 141.  Many of these specimens (AMNH 6556, 30245, 30247-30260, 30298-30299, 30360, 80277) are listed as being from "8 mi. E. of station" which would place them among Third Asiatic Expedition field sites 140-149, with AMNH 6757 listed as 9 miles east, so perhaps site 149.  One exception is AMNH 6744, stated as being found at Elephant Camp (12 miles NW of the station) by de Chardin, who was only on the 1930 expedition.  Based on the elements preserved, specimen numbers and locality of "8 mi. E. of station", sevcral specimens (AMNH 30245, 30247-30260, 30298-30299, 30360) may belong to the two(+?) troodontid individuals noted in the AMNH online catalog represented by specimen numbers AMNH 30261-30297, 30300-30318, 30320-30330 and 30336-30359.
Chow and Rozhdestvensky (1960) noted "three partially complete skeletons of some small carnosaurian dinosaurs" discovered in the June-July 1959 Sino-Soviet expedition, perhaps indicating tyrannosauroids or dromaeosaurids.  Currie and Eberth (1993) stated "A rough tally of Sino-Soviet field identifications shows that ... 'theropods' (including large theropods, small theropods and segnosaurs, but not ornithomimids) were more common (400 specimens)."
References- Gilmore, 1933. On the dinosaurian fauna of the Iren Dabasu Formation. Bulletin American Museum of Natural History. 67, 23-78.
Chow and Rozhdestvensky, 1960. Exploration in Inner Mongolia - A preliminary account of the 1959 field work of the Sino-Soviet Plaeontological Expedition. Vertebrata PalAsiatica. 4(1), 1-10.
Rozhdestvensky and Chow, 1960. On the work of the Soviet-Chinese paleontological expedition of the USSR and China Academy of Sciences in 1959. Palaeontological Journal. 1, 142-147.
Rozhdestvensky, 1961a. The field research of the Soviet-Chinese palaeontological expedition of the USSR and China Academy of Sciences in 1960. Palaeontological Journal. 1, 170-174.
Rozhdestvensky, 1961b. In Central Asia (Brief results of the two-year investigations of the Soviet and Chinese palaeontologists). Vestnik Akademii Nauk SSSR. 8, 85-90.
Dong, Currie and Russell, 1989. The 1988 field program of The Dinosaur Project. Vertebrata PalAsiatica. 27(3), 233-236.
Dong, 1992. Dinosaurian Faunas of China. China Ocean Press. 188 pp.
Currie and Eberth, 1993. Palaeontology, sedimentology and palaeoecology of the Iren Dabasu Formation (Upper Cretaceous), Inner Mongolia, People’s Republic of China. Cretaceous Research. 14, 127-144.
Dong, 1993. The field activities of the Sino-Canadian Dinosaur Project in China, 1987-1990. Canadian Journal of Earth Sciences. 30(10), 1997-2001.

unnamed averostran (Mo and Xu, 2015)
Campanian-Maastrichtian, Late Creyaceous
Nanxiong Group, Jiangxi, China
Material- (NHMG 8500) maxillary tooth (91 x 45.2 x 21 mm)
Comments- Mo and Xu (2015) referred this tooth to Theropoda indet., stating it was most likely carcharodontosaurid or tyrannosaurid. As it is far more labiolingually compressed than tyrannosaurids, large and serrated without strong carcharodontosaurine wrinkles, it seems most likely to be a basal carcharodontosaurid or megaraptoran.
Reference- Mo and Xu, 2015. Large theropod teeth from the Upper Cretaceous of Jiangxi, southern China. Vertebrata PalAsiatica. 53(1), 63-72.

undescribed possible Averostra (Li and Gao, 2007)
Barremian-Albian, Early Cretaceous
Sinuiju Series, North Korea
Comments- Li and Gao (2007) reported theropods from the Sinuijiu Series, while Gao et al. (2009) stated "possible theropod dinosaurs" had been discovered there.
References- Li and Gao, 2007. Lower Cretaceous vertebrate fauna from the Sinuiju basin, North Korea as evidence of geographic extension of the Jehol biota into the Korean peninsula. Journal of Vertebrate Paleontology. 27(3), 106A.
Gao, Li, Wei, Pak and Pak, 2009. Early Cretaceous birds and pterosaurs from the Sinuiju series, and geographic extension of the Jehol biota into the Korean peninsula. Journal of the Paleontological Society of Korea. 25(1), 57-61.

undescribed Averostra (Manabe and Barrett, 2000)
Valanginian-Hauterivian, Early Cretaceous
Kuwajima Formation of the Tetori Group, Japan
Material- (SBEI-156) incomplete tooth (Matsuoka et al., 2002)
(SBEI-170) tooth (Matsuoka et al., 2002)
(SBEI-171) tooth (Matsuoka et al., 2002)
(SBEI-576) tooth (Matsuoka et al., 2002)
(SBEI-814) incomplete tooth (Matsuoka et al., 2002)
Comments- These small teeth were announced as velociraptorine in Barrett and Manabe's (2000) abstract, but Matsuoka et al. (2002) note none have high DSDIs, so merely refer to them as Theropod Type B.
References- Barrett and Manabe, 2000. The dinosaur fauna from the Earliest Cretaceous Tetori Group of Central Honshu, Japan. Journal of Vertebrate Paleontology. 20(3), 28A-29A.
Matsuoka, Kusuhashi, Takada and Setoguchi, 2002. A clue to the Neocomian vertebrate fauna: Initial results from the Kuwajima 'Kaseki-kabe' (Tetori Group) in Shiramine, Ishikawa, central Japan. Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy. 59(1), 33-45.

undescribed averostran (Azuma, Xu, Shibata, Kawabe, Miyata and Imai, 2016)
Middle-Late Aptian, Early Cretaceous
Kitadani Dinosaur Quarry, Kitadani Formation of the Akaiwa Subgroup of the Tetori Group, Japan
Material- (FPDM uncatalogd; formerly part of FPDM-V-8461) distal caudal vertebra
Comments- This was originally assigned to the holotype of "Fukuivenator" by Azuma et al. (2016), who identified thirty caudals before Hattori et al. (2021) identified the fourth and twenty-ninth caudals while listing a distal caudal as one of three "Withdrawn elements" without further comment.  Hattori (pers. comm., 3-4-2022) indicates this caudal is theropodan but was incorrectly associated with the holotype block due to similarities in its field number, but that it currently has no specimen number.
References- Azuma, Xu, Shibata, Kawabe, Miyata and Imai, 2016. A bizarre theropod from the Early Cretaceous of Japan highlighting mosaic evolution among coelurosaurians. Scientific Reports. 6, 20478.
Hattori, Kawabe, Imai, Shibata, Miyata, Xu and Azuma, 2021. Osteology of Fukuivenator paradoxus: A bizarre maniraptoran theropod from the Early Cretaceous of Fukui, Japan. Memoir of the Fukui Prefectural Dinosaur Museum. 20, 1-82.

undescribed Averostra (Ikegami, 2010)
Coniacian-Santonian, Late Cretaceous
Upper Formation of Mifune Group, Japan
Comments- Ikegami (2010) report two bonebeds, one containing isolated theropod elements, and another preserving three theropod lineages.
Reference- Ikegami, 2010. Taphonomy and sedimentology of a bonebed from the Upper Cretaceous Mifune Group in Kyushu, Japan. Journal of Vertebrate Paleontology. Program and Abstracts 2010, 109A-110A.

undescribed Averostra (Hirayama, Takisawa, Sasaki, Sonoda, Yoshida, Takekawa, Mitsuzuka, Kobayashi, Tsuihiji and Tsutsumi, 2015)
Early Santonian, Late Cretaceous
Tamagawa Formation of the Kuji Group, Japan
Material- limb elements
Reference- Hirayama, Takisawa, Sasaki, Sonoda, Yoshida, Takekawa, Mitsuzuka, Kobayashi, Tsuihiji and Tsutsumi, 2015. Terrestrial vertebrates from the Late Cretaceous (Santonian) of Iwate prefecture, eastern Japan. Journal of Vertebrate Paleontology. Program and Abstracts 2015, 143-144.

unnamed Averostra (Tamara et al., 1991)
Late Cenomanian-Early Turonian, Late Cretaceous
Jobu Formation of Mifune Group, Japan
Material- (Kitakyusyu Museum of Natural History coll.) tooth
(Kitakyusyu Museum of Natural History coll.) two dorsal neural arches, fibula
(Mifune Board of Education laboratory coll.) four teeth, incomplete tibia, fibula, distal metatarsal II, distal metatarsal III
Comments- These remains were stated to be like Allosaurus by Tamara et al. (1991), though Chure (2000) thought they were different enough to be excluded from Allosauridae. A femur was associated with the dorsal neural arches and fibula, but Chure correctly notes it resembles pterosaurs more. The teeth differ from Allosaurus in being taller with straight posterior margins. The neural arches differ in having lower and thinner neural spines. The tibia and fibulae are too damaged to be useful. The distal metatarsals differ in being transversely wider, with larger rounder flexor depressions and less cranioproximally extensive distal articular surfaces.
References- Tamara, Okazaki and Ikegami, 1991. Occurence of carnosaurian and herbivorous dinosaurs from upper formation of Mifune Group, Japan, Memiors of the Faculty of Education, Kumamoto University. 40, 31-45.
Chure, Manabe, Tanimoto and Tomida, 1999. An unusual theropod tooth from the Mifune Group (Late Cenomanian to Early Turonian), Kumamoto, Japan. In Tomida, Rich, and Vickers-Rich (eds.). Proceedings of the Second Gondwanan Dinosaur Symposium. National Science Museum (Tokyo) Monographs. 15, 291-296.
Chure, 2000. A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae. PhD thesis. Columbia University. 964 pp.

undescribed Averostra (Buffetaut and Suteethorn, 1998)
?Oxfordian-Early Valanginian, ?Late Jurassic-Early Cretaceous
Phu Kradung Formation, Thailand
Material- (?SM coll.) tooth fragments (Buffetaut and Suteethorn, 2007)
(SM coll.) teeth (Suteethorn et al., 2013)
teeth, astragalus (Buffetaut and Suteethorn, 1998a, b)
(small) material (Chanthasit, 2011)
Comments- Buffetaut and Suteethorn (1998a, b) report "indeterminate theropods (isolated teeth, an astragalus)" and "teeth and an astragalus of an indeterminate theropod" respectively without specifying the locality.
Buffetaut and Suteethorn (2007) reported "fragments of theropod teeth" from the Kham Phok locality. 
Chanthasit (2011) and Chanthasit et al. (2015) report on small theropod remains from the Phu Noi locality.
Suteethorn et al. (2013) reported "theropod teeth" found in 2004 from the Phu Dan Ma locality.
References- Buffetaut and Suteethorn, 1998a. Jurassic dinosaurs from Thailand. EWVP 3. 81.
Buffetaut and Suteethorn, 1998b. Early Cretaceous dinosaurs from Thailand and their bearing on the early evolution and biogeographical history of some groups of Cretaceous dinosaurs. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History Bulletin. 14, 205-210.
Buffetaut and Suteethorn, 2007. A sinraptorid theropod (Dinosauria: Saurischia) from the Phu Kradung Formation of northeastern Thailand. Bulletin de la Societe Geologique de France. 178, 497-502.
Chanthasit, 2011. New theropod remains from the Phu Kradung Formation of Kalasin Province and a review of Late Jurassic theropod record in Thailand. World Conference on Paleontology and Stratigraphy. Program and Abstracts, 34.
Suteethorn, Le Loeuff, Buffetaut, Suteethorn and Wongko, 2013. First evidence of a mamenchisaurid dinosaur from the Upper Jurassic-Lower Cretaceous Phu Kradung Formation of Thailand. Acta Palaeontologica Polonica. 58(3), 459-469.
Chanthasit, Suteethorn and Suteethorn, 2015. Dinosaur assemblage from Phu Noi fossil site in Kalasin Province, northeastern Thailand. 2nd International Symposium on Asian Dinosaurs 2015 Bangkok, p. 23.

undescribed Averostra (Buffetaut, 1983)
Late Barremian?, Early Cretaceous
Ban Ao Kalang, Sao Khua Formation?, Thailand
(PRC MR45) incomplete tooth (14x9x5 mm) (Cuny, Laojumpon, cheychiw and Lauprasert, 2010)
Late Barremian, Early Cretaceous
Kalasin 11, Sao Khua Formation, Thailand
(SM K11-0168) tooth (~38x~16x? mm) (Suteethorn, Martin, Buffetaut, Triamwichanon and Chaimanee, 1995)
Late Barremian, Early Cretaceous
Khok Doo 1, Sao Khua Formation, Thailand
(SM-KD-1 coll.) teeth (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Phu Din Daeng, Sao Khua Formation, Thailand
Material- (PRC148) incomplete tooth (~67x~27x? mm) (Tong, Buffetaut, Suteethorn, Suteethorn, Cuny, Cavin, Deesri, Martin, Wongko, Naksri and Claude, 2019)
(PRC coll.) several teeth, incomplete caudal vertebra (Tong, Buffetaut, Suteethorn, Suteethorn, Cuny, Cavin, Deesri, Martin, Wongko, Naksri and Claude, 2019)
Late Barremian, Early Cretaceous
Phu Sung, Sao Khua Formation, Thailand
tooth, manual unguals (Chanthasit, Suteethorn, Naksri, Tong, Wongko and Sonoda, 2019)
Late Barremian, Early Cretaceous
Phu Wiang 1A, Sao Khua Formation, Thailand
(SM-TF coll.) teeth (~60x~23x~15.5 mm) (Buffetaut and Ingavat, 1983)
Late Barremian, Early Cretaceous
Phu Wiang 3, Sao Khua Formation, Thailand
(SM-PW-3 coll.) about ten teeth (?x~14x? mm) (Buffetaut and Suteethorn, 1989)
(?SM coll.) teeth (Buffetaut, 1983)
Late Barremian, Early Cretaceous
Phu Wiang 5, Sao Khua Formation, Thailand
(SM-PW-5 coll.) teeth and vertebrae (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Phu Wiang 5B, Sao Khua Formation, Thailand
(SM-PW-5B coll.) remains (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Phu Wiang 7, Sao Khua Formation, Thailand
(SM-PW-7 coll.) remains (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Phu Wiang 9A, Sao Khua Formation, Thailand
(SM-PW-9A coll.) teeth (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Phu Wiang 11, Sao Khua Formation, Thailand
(SM-PW-11) teeth (Martin, Suteethorn and Buffeaut, 1999)
Late Barremian, Early Cretaceous
Sakhon Nakhon 1, Sao Khua Formation, Thailand
(SM-SN-1 coll.) teeth (Martin, Suteethorn and Buffeaut, 1999)
Comments- Buffetaut (1983) reported "additional remains of ... theropods" found in 1981 "at Phu Wieng", which was clarified to be "Theropoda indet. : teeth" from Phu Wiang 3 by Martin et al. (1999). 
Buffetaut and Ingavat (1983) reported teeth "of the usual carnosaur type : strongly compressed blade-like teeth with smooth enamel and serrated cutting edges" in addition to what would be described as Siamosaurus by Buffetaut and Ingavat (1986) from the Phu Wiang 1A locality.  The latter reference figures one such tooth as "a "normal" carnosaur from the same locality."
Buffetaut and Suteethorn (1989) noted about ten teeth found in 1987 associated with what would be described as the holotype of Phuwiangosaurus in 1994, at Phu Wiang 3.  These "exhibit the characteristic morphology of carnosaur teeth: the crown is strongly compressed laterally, recurved, with sharp, finely serrated cutting edges" and one tooth is photographed.
Suteethorn et al. (1995) reported a tooth associated with a Phuwiangosaurus skeleton (SM K11-0001 to SM K11-0167) from Phu Wiang 11, which was figured when that specimen was described by Suteethorn et al. (2009). 
Martin et al. (1999) listed several occurances of Theropoda indet. from various localities in the Sao Khua Formation.
Chanthasit et al. (2019) report "a large isolated tooth with serration and manual claws of indeterminate theropods" from the Phu Sung locality.
Tong et al. (2019) reported a "large caudal vertebra lacking the neural spine" and "several blade-shaped, laterally compressed teeth with serrated carinae" from Phu Din Daeng, one of the latter which was figured.
While it's been suggested some of these teeth belong to Siamotyrannus (e.g. Buffetaut and Suteethorn, 1998), Phuwiangvenator and Vayuraptor have since been described from the formation and likely had similar teeth. 
References- Buffetaut, 1983. Mesozoic vertebrates from Thailand: A review. Acta Palaeontologica Polonica. 28(1-2), 43-53.
Buffetaut and Ingavat, 1983. Vertebrates from the continental Jurassic of Thailand. CCOP Technical Bulletin. 16, 68-75.
Buffetaut and Ingavat, 1986. Unusual theropod dinosaur teeth from the Upper Jurassic of Phu Wiang, northeastern Thailand. Revue de Paléobiologie. 5, 217-220.
Buffetaut and Suteethorn, 1989. A sauropod skeleton associated with theropod teeth in the Upper Jurassic of Thailand: Remarks on the taphonomic and palaeoecological significance of such associations. Palaeogeography, Palaeoclimatology, Palaeoecology. 73, 77-83.
Suteethorn, Martin, Buffetaut, Triamwichanon and Chaimanee, 1995. A new dinosaur locality in the Lower Cretaceous of northeastern Thailand. Comptes Rendus de l’Academie des Sciences, Serie IIa. 321, 1041-1047.
Buffetaut and Suteethorn, 1998. Early Cretaceous dinosaurs from Thailand and their bearing on the early evolution and biogeographical history of some groups of Cretaceous dinosaurs. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History Bulletin. 14, 205-210.
Martin, Suteethorn and Buffeaut, 1999. Description of the type and referred material of Phuwiangosaurus sirindhornae Martin, Buffetaut and Suteethorn, 1994, a sauropod from the Lower Cretaceous of Thailand. Oryctos. 2, 39-91.
Suteethorn, Le Loeuff, Buffetaut, Suteethorn, Talubmook and Chonglakmani, 2009. A new skeleton of Phuwiangosaurus sirindhornae (Dinosauria, Sauropoda) from northeastern Thailand. In Buffetaut, Cuny, Le Loeuff and Suteethorn (eds.). Late Palaeozoic and Mesozoic Ecosystems of Southeast Asia. Geological Society London Special Publication. 315, 189-215.
Cuny, Laojumpon, Cheychiw and Lauprasert, 2010. Fossil vertebrate remains from Kut Island (Gulf of Thailand, Early Cretaceous). Cretaceous Research. 31, 415-423.
Chanthasit, Suteethorn, Naksri, Tong, Wongko and Sonoda, 2019. New vertebrate fossil site from the Early Cretaceous Sao Khua Formation, Sakon Nakhon Province, northeastern Thailand. Open Journal of Geology. 9, 619-622.
Tong, Buffetaut, Suteethorn, Suteethorn, Cuny, Cavin, Deesri, Martin, Wongko, Naksri and Claude, 2019. Phu Din Daeng, a new Early Cretaceous vertebrate locality on the Khorat Plateau, NE Thailand. Annales de Paléontologie. 105(3), 223-237.

undescribed Averostra (Buffetaut, 1983)
Aptian, Early Cretaceous
Khok Kruat Formation, Thailand
Material- quadrate, tooth (Buffetaut, 1983)
(multiple taxa and localities) teeth (Buffetaut, Suteethorn, Le Loeuff, Khansubha, Tong and Wongko, 2005)
Comments- Buffetaut (1983) initially reported "a theropod tooth and a quadrate which probably also belongs to a theropod (P. Taquet, pers. comm.)" discovered in 1978.  Buffetaut and Ingavat (1986) stated "a few incomplete bones can be referred to a theropod dinosaur", while Buffetaut and Suteethorn (1992) said "scanty remains of theropod dinosaurs (including teeth and fragmentary bones)" were known.  These reports may all refer back to Buffetaut's tooth and quadrate and are from the Ban Khok Kruat locality.
Buffetaut et al. (2005) wrote "isolated teeth are relatively common at several localities. At Khok Pa Suam (Ubon Ratchathani Province), a number of blade-like teeth, with serrations on both margins, have been collected. Differences in size and morphology strongly suggest that several taxa are present, with at least a large form and a smaller one."
References- Buffetaut, 1983. Mesozoic vertebrates from Thailand: A review. Acta Palaeontologica Polonica. 28(1-2), 43-53.
Buffetaut and Ingavat, 1986. The succession of vertebrate faunas in the continental Mesozoic of Thailand. Bulletin of the Geological Society of Malaysia. 19, 167-172.
Buffetaut and Suteethorn, 1992. A new species of the ornithischian dinosaur Psittacosaurus from the Early Cretaceous of Thailand. Palaeontology. 35(4), 801-812.
Buffetaut, Suteethorn, Le Loeuff, Khansubha, Tong and Wongko, 2005. The dinosaur fauna from the Khok Kruat Formation (Early Cretaceous) of Thailand. In Wannakao, Youngme, Srisuk and Lertsirivorakul (eds.). Proceedings of the International Conference on Geology, Geotechnology and Mineral Resources of Indochina. 575-581.

undescribed Averostra (Glut, 1982)
Middle Jurassic
Paikasigudem, Kota Formation, India
Material- (DUGF/J19-23, 25-37, 39, 45-46, 52-56, 60-65, 68) thirty-three teeth (Prasad and Manhas, 2002)
Middle Jurassic
Yamanpalli, Kota Formation, India
(GSI coll.) elements including braincase (Glut, 1982)
Comments- Glut (1982) reported "Two "carnosaurs," one of which includes a preserved brain cavity, from the Lower Jurassic Kota Formation near Yamanpalli, Andra Pradesh, India, excavated by Yadagiri in 1979."  Olshevsky (1991) says one of these is Dandakosaurus, described by Yadagiri in 1982, which does not preserve a braincase.  The other, Olshevsky lists as "Genus: [To be described from the Kota Formation of India; Yadagiri, 1979]" under Megalosauridae.  Despite a thorough search of the literature involving Olshevsky, Carpenter, Chatterjee, Ford, Khosla, Molnar and Prasad, no Yadagiri 1979 work referencing theropods has been located (note no theropods are mentioned in "Yadagiri, 1979. Observations on Kota Formation of Pranhita Godavari valley, south India. Geological Survey of India, Miscellaneous Publications. 45, 73-79.").  Glut also mentions "two sauropod skulls, generically different because of the position of the frontals, parietals, supratemporal fossae and paroccipitals, discovered by Yadagiri in 1979" and "a stegosaur, discovered by Yadagiri in 1979", which may indicate these are all personal communications or unpublished presentations from Yadagiri as opposed to anything published by Yadagiri in 1979.  In this case Olshevsky was mistaken to present it as a reference, but it would explain its absence from the literature otherwise.
Prasad and Manhas (2002) note undescribed "theropod and ornithischian dinosaur teeth" from the Paikasigudem microvertebrate site.
References- (?) Yadagiri, 1979. [title] [journal] [volume, pp]
Glut, 1982. The New Dinosaur Dictionary. Citadel Press. 288 pp.
Olshevsky, 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings. 2, 196 pp.
Prasad and Manhas, 2002. Triconodont mammals from the Jurassic Kota Formation of India. Geodiversitas. 24(2), 445-464.

unnamed Averostra (Lasseron, 2020)
Early Bathonian, Middle Jurassic
GEA 3, Guelb el Ahmar, Anoual Formation, Morocco
(MNHN GEA3-23; Theropoda gen. et sp. indet. morphotype III) lateral tooth (3.18x2.15x.99 mm) (Lasseron, 2020)
(MNHN GEA3-24; Coelurosauria gen. et sp. indet. morphotype II) lateral tooth (16.76x5.42x6.20 mm) (Lasseron, 2020)
Early Bathonian, Middle Jurassic
GEA 6, Guelb el Ahmar, Anoual Formation, Morocco
(MNHN GEA6-4; Theropoda gen. et sp. indet. morphotype III) lateral tooth (4.04x2.13x1.52 mm) (Lasseron, 2020)
Early Bathonian, Middle Jurassic
GEA 7, Guelb el Ahmar, Anoual Formation, Morocco
(MNHN GEA7-16; Coelurosauria gen. et sp. indet. morphotype II) lateral tooth (8.31x4.13x4.11 mm) (Lasseron, 2020)
Early Bathonian, Middle Jurassic
Guelb el Ahmar, Anoual Formation, Morocco
(MNHN GEA coll.) 46 teeth (Lasseron, 2020)
Comments- Discovered in 2010, Haddoumi et al. (2015) stated "A few nearly complete teeth showing a labiolingually compressed crown and serrated mesial and distal carinae can be assigned to a small, indeterminate theropod."  The figured tooth (MNHN GEA 2-5) was placed in Lasseron's (2020) 'Theropoda gen. et sp. indet. morphotype I' in that work, which is listed under Coelurosauria indet. here.  No other theropod teeth from GEA 2 were mentioned by Lasseron, meaning the others were probably fragments among the 46 additional dental specimens catalogd by Lasseron.  The FSAC Theropoda gen. et sp. indet. morphotype III and Coelurosauria gen. et sp. indet. morphotype II of Lasseron have both mesial and distal serrations
References- Haddoumi, Allain, Meslouh, Metais, Monbaron, Pons, Rage, Vullo, Zouhri and Gheerbrant, 2016 (online 2015). Guelb el Ahmar (Bathonian, Anoual Syncline, eastern Morocco): First continental flora and fauna including mammals from the Middle Jurassic of Africa. Gondwana Research. 29(1), 290-319.
Lasseron, 2020. Paleobiodiversite, evolution et paleobiogeographie des vertebres mesozoiques africans et gondwaniens : apport des gisements du Maroc oriental. Doctoral thesis, Museum National D'Histoire Naturelle. 493 pp.

unnamed possible averostran (Lapparent, 1955)
Early Bathonian, Middle Jurassic
Oued Botane, El Mers Formation, Morocco
Material- (MNHN ELM coll.; syntype of Megalosaurus mersensis) two or three incomplete teeth (<50 mm)
Comments- Excavated in 1941, these were made a syntype of Lapparent's (1955) new theropod species Megalosaurus mersensis, along with a partial vertebral column now considered a teleosauroid (Chabli, 1986) and a dorsal vertebra supposedly similar to the latter specimen and so also placed in Teleosauroidea here.  Unfortunately the teeth were not illustrated and were only described as "three teeth, unfortunately very incomplete. Their flattened form, in the slightly arched blade of a saber, makes them belong to Megalosaurus. The enamel is ornamented with fine, regular longitudinal striations, as in Megalosaurus bucklandi, but the serrations on the edges are not visible. Their size does not exceed 5 cm in length."  The teeth are here provisionally retained as Averostra indet., as teleosaurid teeth are at best slightly compressed labiolingually and Lapparent describes teleosaurid teeth in the same publication (as the "Steneosaurus from El Mers") so would be expected to know the difference (although he didn't for the vertebrae, so this opinion is not made confidently).  As Lapparent compared the fine longitudinal striations to Megalosaurus bucklandii, they are unlikely to be strong enough to be fluting, and this leaves us with no data to distinguish them from e.g. Jurassic ceratosaurs, megalosauroids or carnosaurs.  Note Lapparent's "List of principal vertebrate localities in the Jurassic of El Mers" gives the number of teeth as two, and while they were found two years after the vertebral column, his statement "The presence of theropod carnivores at El Mers was revealed to us initially by three teeth" could easily mean the vertebrae were not (incorrectly) recognized as theropod until after the teeth were discovered.  The specimen numbers are assumed to be MNHN ELM based on "Cetiosaurus" mogrebiensis material described by Lapparent in the same publication and redescribed by Lang (2008). 
References- Lapparent, 1955. Étude paléontologique des vertébrés du Jurassique d'El Mers (Moyen Atlas). Notes et Mémoires du Service Géologique du Maroc. 124, 1-36.
Chabli, 1986. Données nouvelles sur un "Dinosaurien" Jurassique Moyen du Maroc: Megalosaurus mersensis Lapparent 1955, et sur les Megalosaurides en général. In Taquet and Sudre (eds.). Les Dinosaures de la Chine à la France. Musée d'Histoire Naturelle de Toulouse. 66-72.
Lang, 2008. Les cetiosaures (Dinosauria, Sauropoda) et les sauropodes du Jurassique moyen: Revision systematique, nouvelles decouvertes et implications phylogenetiques. Doctoral Thesis. Museum National d’Histoire Naturelle. 638 pp.

undescribed Averostra (Monbaron, Russell and Taquet, 1999)
Bathonian, Middle Jurassic
Wawmda, Gres de Guettioua Formation, Morocco
Material- (Musée des sciences de la Terre de Rabat coll.) teeth
Comments- Excavated in Autumn 1980, Monbaron et al. (1999) noted "theropod teeth were found in association with the" holotype of Atlasaurus.  Although initially identified as the Tilougguit Formation by Monbaron et al., Allain and Aquesbi (2008) later placed it in the overlying Gres de Guettioua Formation.
References- Monbaron, Russell and Taquet, 1999. Atlasaurus imelakei, n. g., n. sp., a brachiosaurid-like sauropod from the Middle Jurassic of Morocco. Comptes Rendus de l’Académie des Sciences. 329, 519-526.
Allain and Aquesbi, 2008. Anatomy and phylogenetic relationships of Tazoudasaurus naimi (Dinosauria, Sauropoda) from the late Early Jurassic of Morocco. Geodiversitas. 30(2), 345-424.

unnamed Averostra (Knoll and Ruiz-Omenaca, 2009)
Berriasian, Early Cretaceous
KM 1983, Ksar Metlili, Ksar Metlili Formation, Morocco
Material- (MNHN SA 2004/2A; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/2C; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/2D; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/2E; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/2F; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/2G; lost) partial tooth (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/3B; lost) tooth fragment (4.90x?x1.60 mm) (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/4A; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/5C; lost) partial tooth (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA 2004/5D; lost) tooth fragment (Knoll and Ruiz-Omenaca, 2009)
(MNHN SA mcm 167; lost) tooth fragment (4.00x?x1.16 mm) (Knoll and Ruiz-Omenaca, 2009)
Beriassian, Early Cretaceous
KM-A1, Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-A1-9) incomplete manual ungual (Lasseron, 2020)
(FSAC-KM-A1-11) incomplete manual ungual, pedal ungual, three unguals (Lasseron, 2020; Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
(FSAC-KM-A1-13) thirteen teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
(FSAC-KM-A1-55) incomplete manual ungual (Lasseron, 2020)
(FSAC-KM-A1-56) pedal ungual (~56 mm) (Lasseron, 2020)
Beriassian, Early Cretaceous
KM-A2, Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-A2-10) two teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
Beriassian, Early Cretaceous
KM-B', Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-B'-21) incomplete manual ungual (Lasseron, 2020)
(FSAC-KM-B'-23) ten teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
(FSAC-KM-B'-24) four teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
(FSAC-KM-B'-25; Coelurosauria gen. et sp. indet. morphotype II) anterior tooth (1.51x.97x.80 mm) (Lasseron, 2020)
(FSAC-KM-B'-26; Theropoda gen. et sp. indet. morphotype III) lateral tooth (.89x.81x.54 mm) (Lasseron, 2020)
(FSAC-KM-B'-26 [3]; Coelurosauria gen. et sp. indet. morphotype III) lateral tooth (3.18x1.65x.83 mm) (Lasseron, 2020)
(FSAC-KM-B'-94) pedal ungual (Lasseron, 2020)
Beriassian, Early Cretaceous
KM-C, Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-C-1) manual(?) ungual (Lasseron, 2020)
Beriassian, Early Cretaceous
KM-D1, Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-D1-9) eighteen teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
Beriassian, Early Cretaceous
KM-D2, Ksar Metlili, Ksar Metlili Formation, Morocco
(FSAC-KM-D2-9) manual(?) ungual (Lasseron, 2020)
(FSAC-KM-D2-10) twelve teeth (Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020)
Comments- The MNHN specimens were collected in 1983, 1986 and 1999, while the FSAC specimens were collected in 2010, 2015 and 2018 (Lasseron, 2020).  Lasseron (2020) noted the "dinosaur remains (Knoll, 2000; Knoll & Ruiz-Omeñaca, 2009) ... were taken out of the MNHN and lost" (translated). Perhaps first mentioned by Evans and Sigogneau-Russell (1997) as "small ... theropod dinosaurs", Sigogneau-Russell et al. (1998) noted "We have been able to distinguish 11 dinosauromorph tooth varieties (8 theropod") based on very small teeth (FABL 1-3 mm)" which were later described in detail by Knoll and Ruiz-Omenaca (2009).  The MNHN specimens are referred to Theropoda indet. by Knoll and Ruiz-Omenaca (2009) and are mostly fragments that could not be evaluated for their tooth morphotypes, except MNHN SA 2004/5C which is the second largest tooth in the sample (preserved length 11 mm) and has a low DSDI (.77-.91) unlike their other morphotypes which lack mesial serrations or have a high DSDI.  The FSAC Theropoda gen. et sp. indet. morphotype III of Lasseron has both mesial and distal serrations, as do the Coelurosauria gen. et sp. indet. morphotypes II and III.  Lasseron et al. lists all four teeth under FSAC-KM-B'-26 as Dromaeosauridae. 
Lasseron refers all the manual and pedal unguals from Ksar Metlili to Coelurosauria because "The presence of a single groove per side identifies these claws as belonging to coelurosaurs, and not to abelisauroids, which have two grooves on each side", but some ceratosaurs like Limusaurus (IVPP V15304, V20096 and V15923 in part) have single grooves and they could also be juvenile e.g. spinosaurids or carcharodontosaurids instead of coelurosaurs, so they are all assigned to Averostra here.  Unequivocal manual unguals show "strong mediolateral compression ... the proximal section of the claws indicates that it was dorsoventrally high. Their cross section is oval. They are strongly curved ventrally."  the "others (KM-C-1, KMD2-9) are very poorly preserved, but their strong lateral compression suggests that they are claws from the hands."  He notes FSCA-KM-A1-55 differs from most of the manual unguals in that "the side grooves are less extended proximally, but are underlined by a small bony plateau, which protrudes medially and laterally from the proximal contour of the claw."  Pedal unguals "have a dorsoventrally larger articular surface, slightly concave and smooth. Their transverse section is subtriangular and their ventral surface is very slightly curved, almost flat."  Lasseron et al. listed FSAC-KM-A1-9 and FSAC-KM-A1-55 as "Claw (pedal?)"
References- Evans and Sigogneau-Russell, 1997. New sphenodontians (Diapsida: Lepidosauria: Rhynchocephalia) from the Early Cretaceous of North Africa. Journal of Vertebrate Paleontology. 17(1), 45‑51.
Sigogneau-Russell, Evans, Levine and Russell, 1998. The Early Cretaceous microvertebrate locality of Anoual, Morocco: A glimpse at the small vertebrate assemblages of Africa. In Lucas, Kirkland and Estep (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science. New Mexico Museum of Natural Histroy and Science Bulletin. 14, 177‑182.
Knoll and Ruiz-Omenaca, 2009. Theropod teeth from the basalmost Cretaceous of Anoual (Morocco) and their palaeobiogeographical significance. Geological Magazine. 146(4), 602-616.
Lasseron, 2020. Paleobiodiversite, evolution et paleobiogeographie des vertebres mesozoiques africans et gondwaniens : apport des gisements du Maroc oriental. Doctoral thesis, Museum National D'Histoire Naturelle. 493 pp.
Lasseron, Allain, Gheerbrant, Haddoumi, Jalil, Métais, Rage, Vullo and Zouhri, 2020 (online 2019). New data on the microvertebrate fauna from the Upper Jurassic or lowest Cretaceous of Ksar Metlili (Anoual Syncline, eastern Morocco). Geological Magazine. 157, 367‑392.

unnamed Averostra (Lavocat, 1954)
Cenomanian, Late Cretaceous
Kem Kem beds, Morocco
Material- (CMN 41770; bone taxon N) metatarsal IV (430 mm) (Russell, 1996)
(CMN 41806; bone taxon E) coracoid fragment (Russell, 1996)
(CMN 41863; bone taxon D) partial distal caudal vertebra (86 mm) (Russell, 1996)
(CMN 50382; bone taxon M) (3.78 kg, juvenile) femur (118 mm)
(CMN 50797; bone taxon D) incomplete distal caudal vertebra (65 mm) (Russell, 1996)
(CMN 50807; bone taxon A) (adult) frontals (50 mm), parietals (Russell, 1996)
(CMN 50808; bone taxon A) (adult) frontals (65 mm) (Russell, 1996)
?(CMN 50810; bone taxon B) (~4 m) (subadult) axis (45 mm) (Russell, 1996)
(CMN 50826; bone taxon P) partial pedal ungual (Russell, 1996)
(CMN 50830; bone taxon O) metatarsal V (187 mm) (Russell, 1996)
(CMN 50839a-e; bone taxon K) manual ungual fragments (~20-50 mm) (Russell, 1996)
(CMN 50842a; bone taxon K) manual ungual fragment (Russell, 1996)
(CMN 50842b; bone taxon L) partial manual ungual (Russell, 1996)
(CMN 50987; bone taxon P; cast) incomplete pedal ungual (Russell, 1996)
(MNHN coll.; Gara Sbaa) teeth (Lavocat, 1954)
(MNHN coll.; Kouah Trick) tibia (630 mm) (Lavocat, 1954)
(MNHN coll.; Kouah Trick) teeth (Lavocat, 1954)
(MNHN coll.; Tabroumit) several teeth (Lavocat, 1954)
(ROM 65779) (>5 year old adult) incomplete femur (Evans, Barrett, Brink and Carrano, 2015)
Comments- Lavocat (1954) mentioned a coelurosaur (sensu Huene) tibia which "looks very much like the tibia of Elaphrosaurus bambergi" and "also resembles very much the two tibiae figured by STROMER (1934, pl. III, fig. 1, 2) as cf. Elaphrosaurus. The relative orientation of the proximal and distal extremities is exactly the same as in the figure 1 b of STROMER. Certain detailed differences, notably in the development of the proximal antero-external crest, permit one to think that pertains to a distinct species."  As Stromer's tibiae (IPHG 1912 VIII 76 and 1912 VIII 192) have since been referred to Tetanurae, the placement of Lavocat's tibia in more generalized Averostra is uncertain, although the similar size and stratigraphic placement could suggest it is closely related.
Russell (1996) proposed multiple informal 'bone taxa' for isolated Kem Kem theropod elements.  Bone taxa G, I, J and M (in part) are here referred to Spinosaurus based on Ibrahim et al. (2014) for the first three and Chiarenza et al. (2016) for the last, bone taxon F to a Xuanhanosaurus-like tetanurine, and bone taxon H to a noasaurid. McFeeters (2013) could only identify CMN 50810 to Saurischia incertae sedis, though he noted it was possibly a non-abelisauroid ceratosaur if theropod (so maybe a juvenile Deltadromeus). Chiarenza and Cau referred bone taxon C to Abelisauroidea based on similarity to Libyan abelisaur PRC.NF.1.21.
References- Lavocat, 1954. Sur les dinosauriens du Continental Intercalaire des Kem-Kem de la Daoura. Comptes Rendus 19th Intenational Geological Congress, 1952. 1, 65-68.
Russell, 1996. Isolated dinosaur bones from the Middle Cretaceous of the Tafilalt, Morocco. Bulletin du Museum national d'Histoire naturelle. 18, 349-402.
McFeeters, 2013. Bone "taxon" B: Reevaluation of a supposed small theropod dinosaur from the Mid-Cretaceous of Morocco. Kirtlandia. 58, 38-41.
Ibrahim, Sereno, Dal Sasso, Maganuco, Fabbri, Martill, Zouhri, Myhrvold and Iurino, 2014. Semiaquatic adaptations in a giant predatory dinosaur. Science. 345(6204), 1613-1616.
Evans, Barrett, Brink and Carrano, 2015 (online 2014). Osteology and bone microstructure of new, small theropod dinosaur material from the early Late Cretaceous of Morocco. Gondwana Research. 27(3), 1034-1041.
Chiarenza and Cau, 2016. A large abelisaurid (Dinosauria, Theropoda) from Morocco and comments on the Cenomanian theropods from North Africa. PeerJ. 4:e1754.

undescribed Averostra (Bardet, Pereda Suberbiola, Jouve, Bourdon, Vincent, Houssaye, Rage, Jalil, Bouya and Amaghzaz, 2010)
Late Maastrichtian, Late Cretaceous
Couche 3, Morocco
Material- two teeth
Comments- Supposed to be described in Pereda-Suberbiola et al. (in prep.).
Reference- Bardet, Pereda Suberbiola, Jouve, Bourdon, Vincent, Houssaye, Rage, Jalil, Bouya and Amaghzaz, 2010. Reptilian assemblages from the Latest Cretaceous - Palaeogene phosphates of Morocco: From Arambourg to present time. Historical Biology. 22(1), 186-199.

undescribed Averostra (Mahammed, Lang, Mami, Mekhali, Benhamou, Bouterfa, Kacemi, Cherief, Chaouati and Taquet, 2005)
Callovian, Middle Jurassic
Rouis El Djir Mount, Algeria
Material- (Centre de Recherche et Developpement of the SONATRACH Company coll.) teeth
Comments- Discovered between 1999 and 2005, Mahammed et al. (2005) noted that the holotype remains of Chebsaurus "were found associated with other indeterminate sauropod bones and theropod teeth."
Reference- Mahammed, Lang, Mami, Mekhali, Benhamou, Bouterfa, Kacemi, Cherief, Chaouati and Taquet, 2005. The 'Giant of Ksour', a Middle Jurassic sauropod dinosaur from Algeria. Comptes Rendus Palevol. 4, 707-714.

undescribed Averostra (Bassoullet and Iliou, 1967)
Albian, Early Cretaceous
Continental Intercalaire, Oued Boudjihane, Algeria
Material- (small?) teeth
(large) ?cervical vertebra
Comments- Bassoullet and Iliou (1967) reported (translated) "numerous teeth of carnivorous theropods some of which are attributable to the genus Carcharodontosaurus, others to coelurosaurids" and "1 vertebra (probably cervical) of a large theropod."  Bassoullet worked at the Faculté des sciences de Paris, but this was dissolved in 1970 so that if the remains were stored there they may have been moved to one of the University of Paris campuses or the University of Orleans.
References- Bassoullet and Iliou, 1967. Découverte de Dinosauriens associés à des Crocodiliens et des Poissons dans le Crétacé inférieur de l'Atlas saharien (Algérie). Compte Rendu Sommaire des Séances de la Société Géologique de France. 7, 294-295.

unnamed Averostra (Fanti, Cau, Martinelli and Contessi, 2014)
Late Aptian-Early Albian, Early Cretaceous
Chenini or Oum Ed Diab Member of the Ain el Guettar Formation, Dahar/Jeffara escarpment, Tunisia
Material- (MGGCTUN26; Morphotype 7) (juvenile?) lateral tooth (20x11x7 mm)
(MGGCTUN33; Morphotype 1) anterior tooth (60x27x17 mm)
(MGGCTUN77; Morphotype 7) (juvenile?) lateral tooth (14x11x7 mm)
(MGGCTUN112; Morphotype 1) anterior tooth (68x27x22 mm)
Comments- Fanti et al. (2014) recovered Morphotype 1 as a non-abelisaurian abelisauroid using Hendrickx's theropod dental matrix, but noted this is poorly supported.  They further "refrain from referring Morphotype 1 to as premaxillary teeth of a tetanuran, as the former does not display a U-shaped cross-section nor a lingual migration of the anterior carina as commonly observed in large tetanurans ... , and disparity in the denticles density between the carinae."  Thus perhaps these are mesialmost dentary teeth of a more generic averostran outside Megalosauria and Allosauroidea.  Fanti et al. also noted three teeth from the Elrhaz Formation (MNHN GRD553a, GRD553b and GAD600) have this same morphotype.  The authors referred Morphotype 7 to Abelisauridae or Carcharodontosauridae, considering them "posterior lateral teeth or possibly juvenile lateral teeth."
Reference- Fanti, Cau, Martinelli and Contessi, 2014. Integrating palaeoecology and morphology in theropod diversity estimation: A case from the Aptian-Albian of Tunisia. Palaeogeography, Palaeoclimatology, Palaeoecology. 410, 39-57.

undescribed possible Averostra (Nessov, Zhegallo and Averianov, 1998)
Cenomanian, Late Cretaceous
'unnamed' beds, Mizdah Formation, Draa Ubari, Libya
Material- (ZIN PC coll.) teeth, fragments
Comments- Nessov et al. (1998) mentioned "bone fragments and teeth of theropod (?) dinosaurs"
References- Nessov, Zhegallo and Averianov, 1998. A new locality of Late Cretaceous snakes, mammals and other vertebrates in Africa (western Libya). Annales de Paléontologie. 84(3-4), 265-275.
Rage and Cappetta, 2002. Vertebrates from the Cenomanian, and the geological age of the Draa Ubari fauna (Libya). Annales de Paléontologie. 88, 79-84.

unnamed Averostra (Stromer, 1934)
Early Cenomanian, Late Cretaceous
Baharija Formation, Egypt
Material- (IPHG 1911 XII 31; destroyed) proximal caudal vertebra (105 mm)
(IPHG 1912 VIII 60; destroyed) skull fragment, centrum (~140 mm)
....(IPHG 1912 VIII 60; paratype of Deltadromeus agilis; destroyed) partial scapula, coracoid
....(IPHG 1912 VIII 60a; destroyed) proximal caudal vertebra (~100 mm)
....(IPHG 1912 VIII 60b; destroyed) proximal caudal vertebra (125 mm)
....(IPHG 1912 VIII 60c; destroyed) proximal caudal vertebra (130 mm)
....(IPHG 1912 VIII 60d; destroyed) partial proximal caudal vertebra (120 mm)
....(IPHG 1912 VIII 60e; destroyed) proximal caudal vertebra (120 mm)
....(IPHG 1912 VIII 60f; destroyed) proximal caudal vertebra (~125 mm)
....(IPHG 1912 VIII 60g; destroyed) partial distal caudal vertebra (115 mm)
....(IPHG 1912 VIII 60h; destroyed) distal caudal vertebra (120 mm)
(IPHG 1912 VIII 63; destroyed) proximal ?metatarsal
....(IPHG 1912 VIII 63a; destroyed) proximal caudal centrum (~110 mm)
....(IPHG 1912 VIII 63b; destroyed) proximal caudal vertebra (120 mm)
....(IPHG 1912 VIII 63c; destroyed) incomplete proximal caudal vertebra (123 mm)
....(IPHG 1912 VIII 63d; destroyed) proximal caudal vertebra (119 mm)
....(IPHG 1912 VIII 63e; destroyed) distal caudal centrum (87 mm)
....(IPHG 1912 VIII 63f; destroyed) distal caudal vertebra (78 mm)
....(IPHG 1912 VIII 63g; destroyed) distal caudal centrum (71 mm)
(IPHG 1912 VIII 70; paratype of Deltadromeus agilis; destroyed) fibula (1.04 m)
(IPHG 1912 VIII 73; destroyed) incomplete astragalus (180 mm wide)
(IPHG 1912 VIII 75; destroyed) metatarsal IV (430 mm)
(IPHG 1912 VIII 77; destroyed) incomplete scapula, coracoid fragment
(IPHG 1912 VIII 78; paratype of Deltadromeus agilis; destroyed) proximal tibia
(IPHG 1912 VIII 81; paratype of Bahariasaurus ingens; paratype of Deltadromeus agilis; destroyed) pubes (550 mm)
(IPHG 1912 VIII 82; destroyed) ischia (325 mm)
(IPHG 1912 VIII 85; destroyed) distal femur
(IPHG 1912 VIII 88a; destroyed) (juvenile) incomplete dorsal vertebra (70 mm)
....(IPHG 1912 VIII 88b; destroyed) centrum (55 mm)
....(IPHG 1912 VIII 88c; destroyed) partial dorsal rib
....(IPHG 1912 VIII 88d; destroyed) distal pubis
(IPHG 1912 VIII 89; destroyed) pedal phalanx (58 mm)
(IPHG 1912 VIII 90; destroyed) incomplete ?manual ungual
(IPHG 1912 VIII 92; destroyed) three incomplete chevrons
(IPHG 1912 VIII 177; destroyed) metatarsals II (523, 543 mm)
(IPHG 1912 VIII 182; destroyed) incomplete humeri or metatarsals
(IPHG 1912 VIII 190; destroyed) (juvenile?) distal tibia
(IPHG 1912 VIII 193; destroyed) incomplete humerus
Comments- This material was mostly referred to Theropoda gen. et sp. indet. by Stromer (1934), and is retained together as Averostra here for the moment, although study of individual specimens will no doubt allow referral to more precise clades. As with all of Stromer's Baharija material, the fossils themselves were destroyed in 1944.
The pubis IPHG 1912 VIII 81 was referred to Bahariasaurus by Stromer and stated to be "generally very similar to it", but differs several ways. Bahariasaurus has a less conspicuous and more proximally placed lateral flaring (15% down the shaft, compared to 21%). The distal end is not flared laterally. There is an extensive separation of the pubic shafts distally, and the interpubic foramen is more distally placed (80% down the shaft, vs. 71%). The proximally placed interpubic foramen suggests this is tetanurine, while the absent obturator foramen is like spinosaurids, allosaurians and most coelurosaurs. Sereno et al. (1996) referred it to Deltadromeus, but that genus should have an interpubic foramen placed distally in the pubic boot itself as in other ceratosaurs, making the referral unlikely. The specimens listed under IPHG 1912 VIII 60, 69 and 70 were tentatively referred to Bahariasaurus. IPHG 1912 VIII 60a-h is a series of caudals which Stromer wrote of as belonging to a single individual. a is separated proximally, and g-h are located far more distally. The centra are amphicoelous to amphiplatyan, g-h much broader than tall, a-d have a ventral groove which is missing in g-h, and a-c have pleurocoels but d-h do not. All vertebrae have neural spines, but g-h lack transverse processes. Stromer wrote these were associated with the pectoral girdle, though he doesn't state whether the skull fragment or larger centrum were associated more exactly than being from the same layer. The scapula IPHG 1912 VIII 60 is missing most of the acromion and the distal end, but was at least 7.6 times longer than the minimum blade width. There is a slight midshaft expansion anteriorly, and the glenoid faces completely ventrally. The associated coracoid is 84% as deep as it is long, excluding the well developed posteroventral process that is missing its distal end. No obvious coracoid tuber is present, nor is there a subglenoid fossa. Stromer states the pectoral girdle IPHG 1912 VIII 77 is very similar in size and shape, and shows the distal end of the scapula was unexpanded. He declined to officially refer the material to a named species because the pectoral girdle of Spinosaurus was unknown, and remains so today. Interestingly, the coracoid is very similar to Baryonyx, differing only in the more posteriorly positioned coracoid foramen and the lesser concavity below the glenoid. The scapulae are also similar, though Baryonyx's is expanded slightly at the distal end and has a less projected glenoid region. Note that the caudals are unlike spinosaurids' however, as the latter lack pleurocoels. Stromer tentatively referred femur IPHG 1912 VIII 69 to Bahariasaurus based on differences from Spinosaurus and Carcharodontosaurus and similarity in size with referred Bahariasaurus specimen IPHG 1912 VIII 62 which was discovered nearby. Fibula IPHG 1912 VIII 70 was referred to Bahariasaurus for the same reasons, though note Stromer considered it to belong to a larger individual than the femur although they were discovered in the same locality. The femur was referred to Deltadromeus by Sereno et al., which is followed here.  The fibula's deep proximomedial fossa indicates it is probably from a ceratosaur or avetheropod, so it's possible they belong to the same taxon. Sereno et al. also referred the scapulocoracoid IPHG 1912 VIII 60 and fibula IPHG 1912 VIII 70 discussed above to Deltadromeus. The scapulocoracoid is more similar to Baryonyx, but the fibula is rather similar to Deltadromeus and may belong to that genus.
IPHG 1912 VIII 78, 85 and 190 were referred to aff. Erectopus sauvagei by Stromer, but none of the elements (distal femur, proximal and distal tibia) are especially similar to Erectopus. They were all found in different deposits and may belong to different taxa. Sereno et al. referred the proximal tibia to Deltadromeus, and it is very similar to that genus so this may be correct.
Stromer misidentified IPHG 1912 VIII 82 as pubes, but the strong transverse tapering distally, obturator process and lack of an interpubic foramen all resemble ischia more. IPHG 1912 VIII 63 was identified as proximal femur, but resembles a metatarsal more. Similarly, IPHG 1912 VIII 177 was identified as a humerus but is a metatarsal II.
References- Stromer, 1934. Ergebnisse der Forschungsreisen Prof. E. Stromers in den Wüsten Ägyptens. II. Wirbeltierreste der Baharije-Stufe (unterstes Cenoman). 13. Dinosauria. Abhandlungen der Bayerischen Akademie der Wissenschaften Mathematisch-naturwissenschaftliche Abteilung, Neue Folge. 22, 1-79.
Sereno, Dutheil, Iarochene, Larsson, Lyon, Magwene, Sidor, Varricchio and Wilson, 1996. Predatory dinosaurs from the Sahara and Late Cretaceous faunal differentiation. Science. 272(5264), 986-991.

undescribed Averostra (Churcher and Russell, 1992)
Early-Middle Campanian, Late Cretaceous
lungfish site 2 km SE of Baris, Quseir Formation, Kharga Oasis, Egypt
Material- (ROM? coll.) two teeth
Comments- Churcher and Russell (1992) indicates in March 1991 and/or 1992 "two large theropod teeth" were located in the Baris Formation.  The locality was described later in Churcher (1995) who used "the terminology of the Geological Survey of Egypt and refer to them as the Quseir Formation" as did future studies, although note the Spinosaurus and Carcharodontosaurus tooth he mentions there were found in 1993 at a different locality (Atrun).
Reference- Churcher and Russell, 1992. Terrestrial vertebrates from Campanian strata in Wadi el-Gedid (Kharga and Dakhleh Oases), Western Desert of Egypt. Journal of Vertebrate Paleontology. 12(3), 23A.
Churcher, 1995. Giant Cretaceous lungfish Neoceratodus tuberculatus from a deltaic environment in the Quseir (=Baris) Formation of Kharga oasis, Western Desert of Egypt. Journal of Vertebrate Paleontology. 15(4), 845-849.

unnamed averostran (Salem, O'Connor, Gorscak, El-Sayed, Sertich, Seiffert and Sallam, 2021)
Middle Campanian, Late Cretaceous
Tineida, El Hindaw Member, Quseir Formation, Dakhla Oasis, Egypt
Material- (MUVP 199) (subadult or adult) partial ~third caudal vertebra (69.3 mm)
Comments- Discovered in 2008 or 2010 (Sallam et al., 2016), this is an amphicoelous caudal centrum 14% taller than wide anteriorly and with no pleurocoels.  The ventral surface lacks a median groove or keel.  At 8% longer than tall, proportions are closest to the third caudal in Carnotaurus.  Salem et al. (2021) merely list it as Theropoda indet..
References- Sallam, O'Connor, Kora, Sertich, Seiffert, Faris, Ouda, El-Dawoudi, Saber and El-Sayed, 2016. Vertebrate paleontological exploration of the Upper Cretaceous succession in the Dakhla and Kharga Oases, Western Desert, Egypt. Journal of African Earth Sciences. 117, 223-234.
Salem, O'Connor, Gorscak, El-Sayed, Sertich, Seiffert and Sallam, 2021. Dinosaur remains from the Upper Cretaceous (Campanian) of the Western Desert, Egypt. Cretaceous Research. 123, 104783.

unnamed Averostra (Gemmellaro, 1921)
Late Campanian, Late Cretaceous
Duwi Formation, Al Sharauna, Gebel Duwi and/or Gebel Nakheil, Egypt
Material- (MGUP coll.; lost) teeth
Comments- Gemmellaro (1921) referred several remains to Megalosaurus crenatissimus (Abelisauridae indet. here) from three localities in eastern Egypt.  These included a smaller tooth illustrated as Figure 14, said to be among "some which, although sharing some common features, differ in the shape of the crown which is not backward curved but is almost isosceles with the sides having a profile slightly convex or straight."  While Gemmellaro believed "such differences in shape and in dimensions between teeth has to be attributed to the diverse locations they occupied in the jaws, and also to the different age of the individuals whom the teeth belonged to", the mesiodistally narrower crown suggests another taxon such as a noasaurid, and that tooth is listed as Averostra indet. here.  The MGUP only has three teeth in their collection now (Di Patti, pers. comm. 6-2023), none of which match Figure 14.
Reference- Gemmellaro, 1921. Rettili maëstrichtiani di Egitto. Giornale di Scienze Naturali ed Economiche. 32, 339-351.

unnamed Averostra (Lapparent, 1960)
Aptian, Early Cretaceous
Elrhaz Formation, Niger
Material- (MNHN GAD600; Morphotype 1) anterior tooth (58x22x13 mm) (Fanti, Cau, Martinelli and Contessi, 2014)
(MNHN GDF coll.) posterior skull fragment, dentary fragment, dozen teeth, vertebrae, manual ungual (~290 mm), ilium, proximal femur, several metatarsals, phalanges, three unguals (Taquet, 1976)
(MNHN GRD553 a; Morphotype 1) anterior tooth (62x21x13 mm) (Fanti, Cau, Martinelli and Contessi, 2014)
(MNHN GRD553 b; Morphotype 1) anterior tooth (82x32x18 mm) (Fanti, Cau, Martinelli and Contessi, 2014)
(MNHN Td. 2250) anterior tooth (70 mm) (Lapparent, 1960)
Comments- Taquet (1976) notes the tooth MNNHN Td. 2250 is not referrable to Carcharodontosaurus, contra Lapparent.
Fanti et al. (2014) list three teeth as "Large theropod indet." and state these Gadoufaoua specimens are referrable to their Morphotype 1 from Kem Kem, which are placed in Averostra indet. here.
References- Lapparent, 1960. Les dinosauriens du "Continental intercalaire" du Sahara central. Memoirs of the Geological Society of France. 88A, 1-57.
Taquet, 1976. Géologie et Paléontologie du Gisement de Gadoufaoua (Aptien du Niger). Cahiers de Paléontologie, Centre National de la Recherche Scientifique, Paris. 191 pp.
Fanti, Cau, Martinelli and Contessi, 2014. Integrating palaeoecology and morphology in theropod diversity estimation: A case from the Aptian-Albian of Tunisia. Palaeogeography, Palaeoclimatology, Palaeoecology. 410, 39-57.

unnamed possible Averostra (Werner, 1994)
Cenomanian, Late Cretaceous
Wadi Milk Formation, Sudan
Material- (Vb-715) pedal ungual
(Vb-716) pedal ungual
Comments- These two unguals were referred to Ornithomimosauria by Werner (1994), but differ from known taxa in being more dorsoventrally compressed and broader, with no lateral grooves or flanges, almost no posterodorsal process, a low flexor tubercle instead of a fossa, and paired fossae posterior to this with a foramen in each. They may not be theropod.
Reference- Werner, 1994. Die kontinentale Wirbeltierfauna aus der unteren Oberkreide des Sudan (Wadi Milk Formation). In Kohring and Martin (eds.). Miscellanea Palaeontologica 3: Festschrift Bernard Krebs. Berliner Geowissenschaften Abhandlungen, Reihe E. 13, 221-249.

undescribed averostran (Hall and Goodwin, 2007)
Tithonian, Late Jurassic
Mugher Mudstone, Ethiopia
Material- tooth
Reference- Hall and Goodwin, 2007. A preliminary analysis of dinosaur teeth from the Mugher Mudstone of Ethiopia. Journal of Vertebrate Paleontology. 27(3), 86A.

unnamed Averostra (Rauhut, 2011)
Late Jurassic
Tendaguru Formation, Tanzania
Material- (NHMUK coll.) few teeth
Comments- Rauhut (2011) stated "Although theropod remains were probably also recovered during the British Tendaguru Expeditions (see Maier 2003), only a few teeth have been prepared and are currently available in the collections of the NHMUK (pers. obs.)."
Reference- Rauhut, 2011. Theropod dinosaurs from the Late Jurassic of Tendaguru (Tanzania). Palaeontology. 86, 195-239.

unnamed Averostra (Janensch, 1925)
Late Tithonian, Late Jurassic
Upper Dinosaur Member of the Tendaguru Formation, Tanzania
Material- (HMN MB R 1934; = MW 5) distal caudal centrum (119 mm)
(HMN MB R 1935; = MW 3) (~7.8 m) partial proximal caudal centrum
(HMN MB R 1940; = TL 45) proximal caudal vertebra (105 mm)
(HMN MB R 2160; = MW 2) incomplete quadrate (transverse condylar width 140 mm)
(HMN MB R lost; = EH 103) (adult) incomplete posterior dorsal vertebra (80 mm)
(HMN MB R lost; = St 297) cervical neural arch
Comments- MB R 1934, 1935 and 2160 were syntypes of Ceratosaurus roechlingi (Janensch, 1925), but the latter is too large to belong to the lectotype individual and none of the specimens is diagnostic beyond Theropoda (Rauhut, 2011). Rauhut noted the caudal MB R 1940 shows similiarities to his new carcharodontosaurid Veterupristisaurus, but it derives from higher sediments than that genus.
References- Janensch, 1925. Die Coelurosaurier und Theropoden der Tendaguru-Schichten Deutsch-Ostafrikas. Palaeontographica. 1(supp. 7), 1-99.
Madsen and Welles, 2000. Ceratosaurus (Dinosauria, Theropoda) a revised osteology. Miscellaneous Publication 00-2 Utah Geological Survey. 80 pp.
Rauhut, 2011. Theropod dinosaurs from the Late Jurassic of Tendaguru (Tanzania). Palaeontology. 86, 195-239.

undescribed averostran (Bond and Bromley, 1970)
Early Cretaceous
Gokwe Formation, Zimbabwe
Material- (University of Zimbabwe coll.) tooth (~37x~20x? mm)
Comments- Bond and Bromley (1970) were the first to figure three theropod teeth, discovered between 1962 and 1970, as their Plate 1A "Reptilian teeth of two types from the Gokwe Formation." Listed as being " in collection of Geology Department, University College of Rhodesia", the latter has since been renamed the University of Zimbabwe.  The first and third are clearly abelisaurid, but the second is narrower and more recurved, so referred to Averostra indet. here.  Fine serrations are present at least distally (~7 per 5 mm), which are not as tall as in the abelisaurid teeth.
Reference- Bond and Bromley, 1970. Sediments with the remains of dinosaurs near Gokwe, Rhodesia. Palaeogeography, Palaeoclimatology, Palaeoecology. 8(4), 313-327.

unnamed Averostra (Mateer, 1987)
Late Jurassic
Enon Conglomerate, South Africa
Material- (SAM 643) tooth (28 mm)
(SAM 649) tooth (>32 mm)
Comments- These teeth lack mesial serrations, and have 18-20 serrations per 5 mm on the distal carina. As no other details are available besides general shape in lateral view and absence of vertical striations (unlike some ceratosaurids), it is unlikely these teeth can be classified more precisely based on published data.
Reference- Mateer, 1987. A new report of a theropod dinosaur from South Africa. Palaeontology. 30(1), 141-145.

unnamed averostran (Mateer, 1987)
Berriasian-Barremian, Early Cretaceous
Sundays River Formation, South Africa
Material- (SAM K1475) pedal ungual (94 mm)
Comments- Mateer (1987) referred this ungual to either Megalosauridae or Allosauridae, while Nessov (1995) referred it to Therizinosauria or "groups most closely related to them" (which in his opinion consisted of spinosaurids and dryptosaurids). Neither of these opinions was made in the context of a modern understanding of theropod phylogeny however. Provisional comparisons suggest it more closely resembles pedal unguals of Sinraptor and Poekilopleuron than those of any therizinosaurs (Beipiaosaurus, Alxasaurus, Nothronychus, Erlikosaurus), which tend to be deeper and more curved.
References- Mateer, 1987. A new report of a theropod dinosaur from South Africa. Palaeontology. 30(1), 141-145.
Nessov, 1995. Dinosaurs of nothern Eurasia: new data about assemblages, ecology, and paleobiogeography. Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg. 1-156.

unnamed possible averostran (Huene, 1934)
Barremian-Santonian, Early Cretaceous-Late Cretaceous
Guichon Formation, Uruguay
Material- (CA coll.; tooth B; lost) premaxillary tooth (9.3x5.2x3.3 mm)
Comments- The tooth is similar to tyrannosaurid premaxillary teeth in being narrow and D-shaped with both carinae on the lingual edge, with at loeast one carina having 4.5 serrations per mm.  The surface between carinae is deeply concave.
Huene (1934) identified this tooth as an ornithomimid, but contra Soto et al. (2011) was unjustified in doing so by then as Struthiomimus had a described edentulous skull as of 1916 even ignoring Dromiceiomimus samueli in 1928.  Huene's identification was based on a tooth described by Lambe (1902) provisionally as Ornithomimus altus (CMN coll.; plate XIV figure 12-13), but which can now be identified as an albertosaurine premaxillary tooth.  Soto et al. suggested Mones (1997) might have tentatively identified this tooth as a sebecosuchian and also noted Soto and Cambiaso (2006) reidentified the element as Theropoda indet..  Ford (online 2015) placed it in Troodontidae without comment.  Huene states the tooth was discovered by Aznarez with the type of Uruguaysuchus, which is in the private Colección Aznárez according to Soto et al. (2011) , who also state the teeth described by Huene are lost.
References- Lambe, 1902. New genera and species from the Belly River series (Mid-Cretaceous). Geological Survey of Canada Contributions to Canadian Palaeontology. 3(2), 25-81.
Huene, 1934. Neue Saurier-Zähne aus der Kreide von Uruguay. Centralblatt für Mineralogie, Geologie und Paläontologie, Abteilung B: Geologie und Paläontologie. 1934(4),183-189.
Mones, 1997. Los vertebrados mesozoicos del Uruguay y sus relaciones con los de áreas vecinas. In Arroyo Cabrales and Polaco (eds.). Homenaje al Profesor Ticul Álvarez. Mexico D.F., Mexico: Instituto Nacional de Antropología e Historia, Colección Científica. 357, 205-222.
Soto and Cambiaso, 2006. Reinterpretación de los dientes de dinosaurios de la Formación Guichón: Iguanodontes basales y terópodos no ornitomímidos. Ameghiniana. 43 (Suppl.), R55-R56.
Soto, Pol and Perea, 2011. A new specimen of Uruguaysuchus aznarezi (Crocodyliformes: Notosuchia) from the middle Cretaceous of Uruguay and its phylogenetic relationships. Zoological Journal of the Linnean Society. 163, S173-S198.
Ford, online 2015. http://www.paleofile.com/Dinosaurs/Theropods/Troodonincertae.asp

undescribed Averostra (Kellner, Azevedo, Carvalho, Henriques and Costa, 2004)
Campanian-Maastrichtian, Late Cretaceous
Parecis Group, Brazil
Holotype- teeth and possible elements
Comments- These were initially noted as being from the Bauru Group, but Bittencourt and Langer (2011) reassigned the locality to the later Parecis Group.
References- Kellner, Azevedo, Carvalho, Henriques and Costa, 2004. Bones out of the jungle: On a dinosaur locality from Matio Grosso, Brazil. Journal of Vertebrate Paleontology. SVP abstracts. 150-151.
Bittencourt and Langer, 2011. Mesozoic dinosaurs from Brazil and their biogeographic implications. Anais da Academia Brasileira de Ciências. 83(1), 23-60.

undescribed Averostra (Bertini, 1993)
Early Maastrichtian, Late Cretaceous
Adamantina Formation, Bauru Group, Brazil
Material- (LF-019-R) tooth (15 mm) (Geroto and Bertini, 2014) D
(LF-020-R) tooth (12 mm) (Geroto and Bertini, 2014) E
(LF-023-R) tooth (21 mm) (Geroto and Bertini, 2014) H
(LF-026-R) tooth (10 mm) (Geroto and Bertini, 2014) K
(LF coll.; V17 provisionally) tooth (11.5 mm) (Geroto and Bertini, 2014) N
(UFRJ-DG 375-Rd) tooth (Candeiro, Abranches, Abrantes, Avilla, Martins, Moreira, Torres, Bergqvist, 2004)
(UFRJ-DG 376-Rd) tooth (Candeiro, Abranches, Abrantes, Avilla, Martins, Moreira, Torres, Bergqvist, 2004)
(UFRJ-DG 377-Rd) tooth  (Candeiro, Abranches, Abrantes, Avilla, Martins, Moreira, Torres, Bergqvist, 2004)
Comments- Bertini and Franco-Rosas (2001) state "Troodontidae teeth were recognized" among over 200 specimens, probably originating with Bertini's (1993) and Franco's (1999) theses.  Geroto and Bertini (2014) described five such teeth (LF-019-R, 020-R, 023-R, 026-R and provisionally labeled V17) serrated both mesially and distally with low DSDIs and transversely compressed and recurved.  Considering the lack of South American troodontids and the absence of clear troodontid characters, these may belong to e.g. noasaurids instead and are placed in Averostra here.
References- Bertini, 1993. Paleobiologia do Grupo Bauru, Cretáceo Superior continental da Bacia do Paraná, com ênfase em sua fauna de amniotas. PhD thesis, Universidade Federal do Rio de Janeiro. 493 pp.
Franco, 1999. Dentes de teropodomorfos do Cretáceo Superior da Bacia do Paraná. Análise em Microscopia Eletrônica de Varredura. Masters thesis, Universidade Estadual Paulista. 113 pp.
Bertini and Franco-Rosas, 2001. Scanning electron microscope analysis on Maniraptoriformes teeth from the Upper Cretaceous of southeastern Brazil. Journal of Vertebrate Paleontology. 21(3), 33A.
Franco Rosas, 2002. Methodological parameters for identification and taxonomic classification of isolated theropodomorph teeth. Anais da Academia Brasileira de Ciências. 74(2), 367.
Candeiro, Abranches, Abrantes, Avilla, Martins, Moreira, Torres, Bergqvist, 2004. Dinosaur remains from western Sao Paulo State, Brazil (Bauru Basin, Adamantina Formation, Late Cretaceous). Journal of South American Earth Sciences. 18, 1-10.
Geroto and Bertini, 2014. New records of fossil vertebrates from the Upper Cretaceous Adamantina Formation (Bauru Group), southeastern Brazil. Revista do Instituto Geológico, São Paulo. 35(2), 39-56.

unnamed Averostra (Bertini, 1993)
Late Maastrichtian, Late Cretaceous
Serra da Galga Formation of the Bauru Group, Brazil
Material- teeth (Bertini, 1993)
(CPP 128, 243, 271, 371) four teeth (Candeiro, Bergqvist, Novas and Currie, 2004)
(CPP 374) tooth (Candeiro, Currie and Bergqvist, 2012)
Comments- In 2021 the Serra da Galga and Ponte Alta Members of the Marilia Formation were recognized as the Serra da Galga Formation.
Bertini and Franco-Rosas (2001) state "Troodontidae teeth were recognized" among over 200 specimens, probably originating with Bertini's (1993) and Franco's (1999) theses.  Candeiro et al. (2012) describes one tooth (CPP 374) initially listed by Candeiro et al. (2004) resembling the Adamantina Formation troodontid morph of Bertini, and like those teeth these are here placed more generally as Averostra.
References- Bertini, 1993. Paleobiologia do Grupo Bauru, Cretáceo Superior continental da Bacia do Paraná, com ênfase em sua fauna de amniotas. PhD thesis, Universidade Federal do Rio de Janeiro. 493 pp.
Franco, 1999. Dentes de teropodomorfos do Cretáceo Superior da Bacia do Paraná. Análise em Microscopia Eletrônica de Varredura. Masters thesis, Universidade Estadual Paulista. 113 pp.
Bertini and Franco-Rosas, 2001. Scanning electron microscope analysis on Maniraptoriformes teeth from the Upper Cretaceous of southeastern Brazil. Journal of Vertebrate Paleontology. 21(3), 33A.
Franco Rosas, 2002. Methodological parameters for identification and taxonomic classification of isolated theropodomorph teeth. Anais da Academia Brasileira de Ciências. 74(2), 367.
Candeiro, Bergqvist, Novas and Currie, 2004. Theropod teeth from the Marilia Formation (Upper Maastrichtian), Minas Gerais state, Brazil. Journal of Vertebrate Paleontology. 24(3), 204A.
Candeiro, Currie and Bergqvist, 2012. Theropod teeth from the Marília Formation (Late Maastrichtian) at the paleontological site of Peirópolis in Minas Gerais State, Brazil. Revista Brasileira de Geociências. 42(2), 323-330.

undescribed averostran (Pol and Rauhut, 2012)
Middle Toarcian, Early Jurassic
Canadon Asfalto Formation, Chubut, Argentina
Material- three cervical vertebrae
Reference- Pol and Rauhut, 2012. A Middle Jurassic abelisaurid from Patagonia and the early diversification of theropod dinosaurs. Proceedings of the Royal Society B. 279(1741), 3170-3175.

unnamed averostran (Lydekker, 18__ in Huene, 1929)
Cretaceous?
Neuquen, Argentina
Material- dorsal vertebra (100 mm)
References- Lydekker, 18__.
Huene, 1929. Los saurisquios y ornitisquios del Cretacéo Argentino. Anales del Museo de La Plata (series 3). 3, 1-196.

unnamed Averostra (Huene, 1929)
Cenomanian, Late Cretaceous
Mata Amarilla Formation (= Pari Aike Formation), Santa Cruz, Argentina
Material- (Ameghino coll.) partial tooth (26 mm)
(Ameghino coll.) distal manual phalanx
(Ameghino coll.) long bone epiphysis
Reference- Huene, 1929. Los saurisquios y ornitisquios del Cretacéo Argentino. Anales del Museo de La Plata (series 3). 3, 1-196.

unnamed averostran (Huene, 1929)
Late Coniacian, Late Cretaceous
Plottier Formation of the Rio Neuquen Group, Neuquen, Argentina
Material- (MLP coll.) incomplete tooth (16 x 9.5 x 6.3 mm)
Comments- Carnosaurus was listed by Huene (1929) in a faunal list for three specimens- a metapodial (MLP CS 1240) from the Allen Formation, a tooth (MACN coll.) perhaps from the Chubut group, and provisionally ("Cf. Carnosaurus") a tooth (MLP coll.) from the Plottier Formation. As Olshevsky (DML, 1999) noted, the name is probably a typographical error for Carnosauria made when translating the paper from German to Spanish. This is indicated by the fact he never attaches a name to these specimens in the description or plates, and indeed states on of the specimens is taxonomically indistinguishable from another named genus. Since "Carnosaurus" was apparently not meant as a valid name when it was published (ICZN Article 11.5), it is a nomen nudum.
Huene described the Plottier tooth under the heading "tooth of a carnivorous saurischian", stating it was not his intention to decide whether it was a coelurosaur or carnosaur. The mesial edge is more convex than the distal edge, especially basally. There are 12.5 serrations per 5 mm, stated to be on both mesial and distal carinae. The tooth seems to be from a somewhat anterior position, as it has an asymmetrical section, with one side generally more convex except for a distally placed concavity. What are described as growth lines on the labial and lingual surfaces may be enamel wrinkles, which are apically concave in the distal half of one side. This tooth is difficult to place without further study of Gondwanan small theropod dentitions and is here assigned to Averostra.
References- Huene, 1929. Los saurisquios y ornitisquios del Cretacéo Argentino. Anales del Museo de La Plata (series 3). 3, 1-196.
Olshevsky, DML 1999. https://web.archive.org/web/20200720012936/http://dml.cmnh.org/1999Nov/msg00507.html

undescribed averostran (Filippi, Martinelli and Garrido, 2015)
Santonian, Late Cretaceous
Bajo de la Carpa Formation of the Rio Colorado Subgroup, Neuquen, Argentina
Material- (MAU-Pv-N 496/1) tooth
Reference- Filippi, Martinelli and Garrido, 2015. Una nueva asociación de dientes vertebrados para la Formación Bajo de la Carpa (Santoniense, Cretácico Superior) en Rincón de los Sauces, Neuquén, Argentina. Revista Española de Paleontología. 30(2), 223-238.

undescribed averostran (Gasparini, Sterli, Parras, O'Gorman, Salgado, Varela and Pol, 2015)
Campanian-Maastrichtian, Late Cretaceous
La Colonia Formation, Chubut, Argentina
Material- (MPEF-PV 10829) incomplete metatarsal III, partial metatarsal IV, distal metatarsal
Reference- Gasparini, Sterli, Parras, O'Gorman, Salgado, Varela and Pol, 2015. Late Cretaceous reptilian biota of the La Colonia Formation, central Patagonia, Argentina: Occurrences, preservation and paleoenvironments. Cretaceous Research. 54, 154-168.

unnamed averostran (Long and Cruickshank, 1996)
Hauterivian-Barremian, Early Cretaceous
Birdrong Sandstone, Western Australia
Material- (WAM 96.5.1) (~5 m) incomplete mid caudal vertebra (~63 mm)
Comments- Long and Cruickshank (1996) referred this to Tetanurae without justification, and Carrano et al. (2012) believed it to be Theropoda indet..
References- Long and Cruickshank, 1996. First record of an Early Cretaceous theropod dinosaur bone from Western Australia. Records of the Western Australian Museum. 18, 219-222.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

unnamed Averostra (Woodward, 1906)
Late Barremian-Early Aptian, Early Cretaceous
Wonthoggi Formation of the Strzelecki Group, Victoria, Australia
Material- (NMV P10058) incomplete ?pedal ungual (Woodward, 1906)
(NMV P186054) incomplete manual phalanx (90 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P186151) partial pedal phalanx (49 mm) (Cleeland, 2004)
?(NMV P186175) vertebra (Cleeland, 2004)
?(NMV P186218) (large) vertebra (Cleeland, 2004)
(NMV P199050) manual phalanx (95 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P199085) incomplete ?manual ungual (~34 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P203700) distal caudal vertebra (29 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P208512) incomplete manual ungual (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P209990) incomplete metatarsal ?IV (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P210090) incomplete distal caudal vertebra (32 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P212806) distal caudal vertebra (29 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P212840) mid caudal neural arch (Cleeland, 2004)
(NMV P216642) incomplete distal caudal vertebra (24 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV coll.) frontal (Benson, Rich, Vickers-Rich and Hall, 2012)
Comments- NMV P199085 is probably the ungual mentioned by Pigdon (online 2000) as being ornithomimosaurian on his Timimus page. Benson et al. (2012) described it as weakly curved with a low flexor tubercle and flattened ventral surface which is broader than the dorsal surface. The authors referred it to Theropoda indet., and there is no evidence it belonged to Timimus.
Rich (2003) reported identifying small theropod skull fragments, but Benson et al. (2012) state the only cranial element known is an unidentified frontal. Cleeland (2004) reported NMV P186175 and P186218, though neither are mentioned by Benson et al..
Kool (2004) reported two small recurved serrationless theropod teeth.
The Dinosaur Dreaming 2007 update notes several theropod teeth and a dorsal centrum were discovered.
References- Woodward, 1906. On a tooth of Ceratodus and a dinosaurian claw from the Lower Jurassic of Victoria, Australia. Annals and Magazine of Natural History, 7th series. 103, 1-3.
Pigdon, online 2000. http://home.alphalink.com.au/~dannj/timimus.htm
Rich, 2003. Research update. Dinosaur Dreaming 2003 Report. 22-23.
Cleeland, 2004. A summary of the status of known Cretaceous vertebrate fossil localities on the Strzelecki Coast, Victoria, Australia. Dinosaur Dreaming 2004 Field Report. 10-13.
Benson, Rich, Vickers-Rich and Hall, 2012. Theropod fauna from Southern Australia indicates high polar diversity and climate-driven dinosaur provinciality. PLoS ONE. 7(5), e37122.

unnamed Averostraa (Currie, Vickers-Rich and Rich, 1996)
Late Aptian-Early Albian, Early Cretaceous
Eumeralla Formation of the Otway Group, Victoria, Australia
Material- (NMV P180856) incomplete metatarsal ?II (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P180899) distal manual phalanx (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P185858) distal caudal vertebra (43 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P186386) surangular (Currie, Vickers-Rich and Rich, 1996)
(NMV P199783) distal caudal vertebra (44 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P223063) distal caudal vertebra (23 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
(NMV P229456) distal caudal vertebra (25 mm) (Benson, Rich, Vickers-Rich and Hall, 2012)
Comments- Though NMV P186386 was identified as an oviraptorosaur by Currie et al. (1996) based on its medially projecting coronoid process, Agnolin et al. (2010) noted the convex margin with no obvious external mandibular fenestra and lack of articular fusion differed from that clade.
References- Currie, Vickers-Rich and Rich, 1996. Possible oviraptorosaur (Theropoda, Dinosauria) specimens from the Early Cretaceous Otway Group of Dinosaur Cove, Australia. Alcheringa. 20(1-2), 73-79.
Agnolin, Ezcurra, Pais and Salisbury, 2010. A reappraisal of the Cretaceous non-avian dinosaur faunas from Australia and New Zealand: Evidence for their Gondwanan affinities. Journal of Systematic Palaeontology. 8(2), 257-300.
Benson, Rich, Vickers-Rich and Hall, 2012. Theropod fauna from Southern Australia indicates high polar diversity and climate-driven dinosaur provinciality. PLoS ONE. 7(5), e37122.

unnamed averostran (Brougham, Smith and Bell, 2020)
Early Cenomanian, Late Cretaceous
Wallangulla Sandstone Member of Griman Creek Formation, New South Wales, Australia
Material- (LRF 3054) ulna
Comments- Brougham et al. (2020) mention "a possible indeterminate theropod ulna."
Reference- Brougham, Smith and Bell, 2020. Noasaurids are a component of the Australian 'mid'-Cretaceous theropod fauna. Scientific Reports. 10:1428.

unnamed averostran (Long, 1995)
Cenomanian-Early Turonian, Late Cretaceous
Molecap Greensand, Western Australia
Material- (WAM 92.7.1) (~4 m) pedal phalanx IV-1 (40.8 mm)
Comments- Long (1995) thought this was probably a carnosaur, but Carrano et al. (2012) believed it to be Theropoda indet.
References- Long, 1995. A theropod dinosaur bone from the Late Cretaceous Molecap Greensand, Western Australia. Records of the Western Australian Museum. 17, 143-146.
Carrano, Benson and Sampson, 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology. 10(2), 211-300.

undescribed Averostra (Rejcek, 2011)
Early Maastrichtian, Late Cretaceous
Cape Lamb Member of the Snow Hill Island Formation, Vega Island, Antarctica
Material- (MLP 15-I-7-2) pedal phalanx III-1 (Coria, O'Gorman, Cardenas, Mors, Chornogubsky and Lopez, 2015)
tooth (Rejcek, 2011)
References- Rejcek, 2011. Big haul: Paleontologists return from Antarctic expedition with about 200 fossils. The Antarctic Sun. 11-16-2011.
Coria, O'Gorman, Cardenas, Mors, Chornogubsky and Lopez, 2015. New dinosaur records from the Upper Cretaceous of Vega Island, Antarctica. XXIX Jornadas Argentinas de Paleontología de Vertebrados, resumenes. Ameghiniana. 52(4) suplemento, 13.