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Tianyuraptor ostromi

Reptilia - Avetheropoda - Dromaeosauridae

Taxonomy
Tianyuraptor ostromi was named by Zheng et al. (2009). Its type specimen is STM1-3, a skeleton, and it is a compression fossil. Its type locality is Dawangzhangzi, which is in a Barremian lacustrine shale in the Yixian Formation of China. It is the type species of Tianyuraptor.

Synonymy list
YearName and author
2009Tianyuraptor ostromi Zheng et al.

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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()
RankNameAuthor
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptoriformes
familyDromaeosauridae
genusTianyuraptor
speciesostromi

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
X. Zheng et al. 2009A medium-sized dromaeosaurid that differs from other dromaeosaurids in the following derived features: length of the middle caudal vertebrae more than twice that of the dorsal vertebrae, a small and extremely slender furcula, and an elongated hindlimb about three times as long as the dorsal series.