PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Avimimus

Reptilia

Taxonomy

Avimimus was named by Kurzanov (1981). It is the type genus of Avimimidae. It was considered monophyletic by Currie (2000).

It was assigned to Theropoda by Carroll (1988); to Avimimiformes by Chatterjee (1991); to Arctometatarsalia by Holtz (1994) and Holtz (1995); to Maniraptora by Rauhut (2003); to Caenagnathoidea by Lü et al. (2004); to Caenagnathidae by Lü and Zhang (2005); to Avimimidae by Kurzanov (1981), Thulborn (1984), Paul (1988), Currie (2000), Eberth et al. (2001), Osmólska et al. (2004), Longrich et al. (2013) and Funston et al. (2018); and to Oviraptorosauria by Maryanska et al. (2002), Turner et al. (2009), Balanoff et al. (2009), Longrich et al. (2010), Xu and Han (2010), Fanti et al. (2012), Lamanna et al. (2014), Lü et al. (2015), Yao et al. (2015), Tsuihiji et al. (2017) and Funston (2020).

Species

A. nemegtensis, A. portentosus

Synonymy list

Year	Name and author
1981	Avimimus Kurzanov
1984	Avimimus Thulborn p. 133
1988	Avimimus Carroll
1988	Avimimus Paul p. 401
1991	Avimimus Chatterjee p. 327
1994	Avimimus Holtz
1995	Avimimus Holtz, Jr. p. 35A
2000	Avimimus Currie p. 443
2001	Avimimus Eberth et al. p. 58
2002	Avimimus Maryanska et al. pp. 103-4 fig. 1
2003	Avimimus Rauhut p. 156
2004	Avimimus Lü et al. p. 112 fig. 8
2004	Avimimus Osmólska et al. p. 166
2005	Avimimus Lü and Zhang p. 417
2009	Avimimus Balanoff et al. p. 2
2009	Avimimus Turner et al. p. 11
2010	Avimimus Longrich et al. p. 953 fig. 7
2010	Avimimus Xu and Han p. 16 fig. 3
2012	Avimimus Fanti et al. p. 10
2013	Avimimus Longrich et al. p. 41 fig. 14
2014	Avimimus Lamanna et al. p. 10 fig. 6
2015	Avimimus Lü et al.
2015	Avimimus Yao et al. p. 292
2017	Avimimus Tsuihiji et al. p. 9–10
2018	Avimimus Funston et al.
2020	Avimimus Funston p. 136 fig. 20

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()

Rank	Name	Author
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Theropoda	()
—	Neotheropoda
—	Averostra	Paul 2002
—	Tetanurae
—	Coelurosauria	()
—	Maniraptora
infraorder	Oviraptorosauria
genus	Avimimus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Avimimus Kurzanov 1981

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†Avimimus nemegtensis Funston et al. 2018

†Avimimus portentosus Kurzanov 1981

Diagnosis

Reference	Diagnosis
S. Chatterjee 1991	Apomorphous characters of Avimimus (10) Ascending process of quadratojugal is lost as in other birds, so that the quadrate forms the posterior margin of the lower temporal fenestra; however, unlike any other birds, the quadrate is fused to the squamosal; (11) teeth present in premaxilla, but absent in maxilla and dentary.