PBDB Taxon

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

Xiaotingia

Reptilia - Troodontidae

Taxonomy

Xiaotingia was named by Xu et al. (2011). It is not extant. Its type is Xiaotingia zhengi.

It was assigned to Archaeopterygidae by Xu et al. (2011); to Deinonychosauria by Lee and Worthy (2011); to Avialae by Godefroit et al. (2013); to Paraves by O'Connor and Sullivan (2014) and Zhou and Wang (2017); to Troodontidae by Gianechini et al. (2017); and to Sinovenatorinae by Sellés et al. (2021).

Species

X. zhengi (type species)

Synonymy list

Year	Name and author
2011	Xiaotingia Lee and Worthy p. 3
2011	Xiaotingia Xu et al. p. 465
2013	Xiaotingia Godefroit et al.
2014	Xiaotingia O'Connor and Sullivan
2017	Xiaotingia Gianechini et al. p. 11
2017	Xiaotingia Zhou and Wang p. 245
2021	Xiaotingia Sellés et al. p. 6

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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	()
—	Romeriida
—	Diapsida	()

Rank	Name	Author
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Theropoda	()
—	Neotheropoda
—	Averostra	Paul 2002
—	Tetanurae
—	Coelurosauria	()
—	Maniraptora
—	Paraves
infraorder	Deinonychosauria
family	Troodontidae
subfamily	Sinovenatorinae
genus	Xiaotingia

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. †Xiaotingia Xu et al. 2011

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†Xiaotingia zhengi Xu et al. 2011

Diagnosis

No diagnoses are available

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 Kimmeridgian or 167.70000 to 150.80000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Bathonian - Early/Lower Kimmeridgian	167.7 - 150.8	China (Liaoning)	X. zhengi (92421)