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Sinovenatorinae

Reptilia - Troodontidae

Taxonomy
Sinovenatorinae was named by Shen et al. (2017). Its type is Sinovenator.

It was assigned to Troodontidae by Shen et al. (2017), Sellés et al. (2021).

Subtaxa
Jianianhualong, Mei, Sinovenator (type genus), Xiaotingia

Synonymy list
YearName and author
2017Sinovenatorinae Shen et al. p. 765
2021Sinovenatorinae Sellés et al. p. 6

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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
subfamilySinovenatorinae

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.

Subfm. †Sinovenatorinae Shen et al. 2017
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G. †Jianianhualong Xu et al. 2017
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†Jianianhualong tengi Xu et al. 2017
G. †Mei Xu and Norell 2004
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†Mei long Xu and Norell 2004
G. †Sinovenator Xu et al. 2002
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†Sinovenator changii Xu et al. 2002
G. †Xiaotingia Xu et al. 2011
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†Xiaotingia zhengi Xu et al. 2011
Diagnosis
ReferenceDiagnosis
C. Shen et al. 2017Based on our phylogenetic analysis, this clade can be diagnosed with the following combination of characters (for further discussion, see below): a premaxilla whose anteroposterior length is less than 10% of the length of the maxilla along the ventral margin of the upper jaw; a premaxillary maxillary process that contacts the nasal ventral to the external naris; some maxillary and dentary teeth that lack serrations on the mesial carina; unfused zygapophyses on the sacral vertebrae; an antitrochanter that is posterodorsal to the acetabulum; and a metatarsal IV that is mediolaterally wide and flattened in cross section.
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: Marsh 1875, Holtz et al. 2000

Age range: base of the Late/Upper Bathonian to the top of the Early/Lower Aptian or 168.20000 to 119.57000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Bathonian - Early/Lower Kimmeridgian168.2 - 152.21China (Liaoning) Xiaotingia zhengi (92421)
Late/Upper Barremian - Early/Lower Aptian125.77 - 119.57China (Liaoning) Jianianhualong tengi (67611) Mei long (133789) Sinovenator changii (55685 73438) Sinovenator changii, Mei long (53493) Sinovenator sp. (235272)