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Sinovenator changii

Reptilia - Troodontidae

Taxonomy
Sinovenator changii was named by Xu et al. (2002). Its type specimen is IVPP V12615, a partial skeleton (disarticulated partial skull and skeleton), and it is a 3D body fossil. Its type locality is Lujiatun village, Shangyuan [general] (IVPP), which is in a Barremian/Aptian fluvial tuff in the Yixian Formation of China.

Synonymy list
YearName and author
2002Sinovenator changii Xu et al. p. 780 fig. 1
2003Sinovenator changii Makovicky et al. p. 25 fig. 21
2004Sinovenator changii Makovicky and Norell p. 185
2004Sinovenator changii Norell and Hwang p. 6
2004Sinovenator changii Senter et al. p. 5
2007Sinovenator changii Turner et al. p. 5
2009Sinovenator changii Bever and Norell p. 3
2009Sinovenator changii Norell et al. p. 13
2011Sinovenator changii Goianechini and Apesteguía p. 166
2011Sinovenator changii Turner et al. p. 6
2011Sinovenator changi Zanno et al. p. 2
2012Sinovenator changii Prieto-Marquez et al. p. 121
2017Sinovenator changii Evans et al. p. 822
2017Sinovenator changii van der Reest and Currie p. 920
2018Sinovenator changii Yin et al. p. 3
2020Sinovenator changii Yang et al. p. 2
2021Sinovenator changii Sellés et al. p. 5

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
infraorderDeinonychosauria
familyTroodontidae
subfamilySinovenatorinae
genusSinovenator
specieschangii

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.

†Sinovenator changii Xu et al. 2002
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Diagnosis
ReferenceDiagnosis
Y.-L. Yin et al. 2018Sinovenator is distinguished from other troodontids in having the following autapomorphies (newly added diagnostic features marked by*): well-developed medial shelf on the jugal*; slender bar in the parasphenoid recess*; lateral groove on the pterygoid flange of the ectopterygoid*; surangular “T”-shaped in cross-section; lateral surface of the anterior cervical vertebrae bearing two pneumatic foramina*; and prominent lateral cnemial crest continuous with the fibular crest.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialf
Locomotion: actively mobileo
Life habit: ground dwellingf
Diet: carnivoref
Diet 2: omnivoref
Reproduction: oviparousf
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-09-11 17:03:06
Modified: 2005-09-11 19:03:56
Source: f = family, o = order
References: Holtz et al. 2000, Marsh 1875

Age range: base of the Late/Upper Barremian to the top of the Early/Lower Aptian or 130.00000 to 122.46000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Barremian - Early/Lower Aptian130.0 - 122.46China (Liaoning) Sinovenator changii (type locality: 53493 55685 73438)