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Chirostenotes elegans

Reptilia - Avetheropoda - Caenagnathidae

Taxonomy
Ornithomimus elegans was named by Parks (1933). Its type specimen is ROM 781, a set of limb elements (Tarsometatarsus), and it is not a trace fossil. Its type locality is Little Sandhill Creek (ROM), which is in a Campanian terrestrial horizon in the Dinosaur Park Formation of Canada.

It was recombined as Struthiomimus elegans by Russell (1964); it was synonymized subjectively with Macrophalangia canadensis by Russell (1972); it was recombined as Chirostenotes elegans by Currie and Russell (1988), Sues (1997), Rauhut (2003), Osmólska et al. (2004), Longrich (2008) and Sullivan et al. (2011); it was recombined as Elmisaurus elegans by Currie (1989), Currie (1992), Varricchio (2001) and Currie (2005); it was recombined as Leptorhynchos elegans by Longrich et al. (2013), Longrich et al. (2013), Funston et al. (2015) and Funston and Currie (2016).

Synonymy list
YearName and author
1933Ornithomimus elegans Parks p. 16 figs. Pl. 6, fig. 1-2
1964Struthiomimus elegans Russell p. 12
1970Ornithomimus elegans Steel p. 20
1988Chirostenotes elegans Currie and Russell
1989Elmisaurus elegans Currie
1992Elmisaurus elegans Currie p. 246
1997Chirostenotes elegans Sues p. 699
2001Elmisaurus elegans Varricchio p. 48
2003Chirostenotes elegans Rauhut p. 40
2004Chirostenotes elegans Osmólska et al. p. 166
2005Elmisaurus elegans Currie p. 5
2008Chirostenotes elegans Longrich p. 994
2011Chirostenotes elegans Sullivan et al. p. 428
2013Leptorhynchos elegans Longrich et al. p. 29
2015Leptorhynchos elegans Funston et al. p. 183
2016Leptorhynchos elegans Funston and Currie p. 1

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
RankNameAuthor
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
infraorderOviraptorosauria
superfamilyCaenagnathoideaSternberg 1940
familyCaenagnathidae
genusChirostenotes
specieselegans()

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.

Diagnosis
ReferenceDiagnosis
N. R. Longrich et al. 2013Tip of beak strongly upturned, with anterior occlusal margin projecting vertically. Anterior margin of symphysis straight, chin squarish in lateral view.
N. R. Longrich et al. 2013Tip of beak strongly upturned, with anterior occlusal margin projecting vertically. Anterior margin of symphysis straight, chin squarish in lateral view.