PBDB Taxon

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

Omeisaurus fuxiensis

Reptilia

Taxonomy

Omeisaurus fuxiensis was named by Dong et al. (1983). Its type specimen is CV 00267 and is not a trace fossil. Its type locality is Wujiaba Dam Quarry, Zigong, which is in a Bathonian/Callovian terrestrial horizon in the Shaximiao Formation of China.

It was considered a nomen dubium by Upchurch et al. (2004).

Synonymy list

Year	Name and author
1983	Omeisaurus fuxiensis Dong et al. pp. 52-53 figs. 3-4, Pl. 15
1992	Omeisaurus fuxiensis Dong
1998	Omeisaurus fuxiensis Dong p. 81
2005	Omeisaurus fuxiensis Peng et al.
2009	Omeisaurus fuxiensis Xing et al. p. 1394
2011	Omeisaurus fuxiensis Jiang et al. p. 193
2019	Omeisaurus fuxiensis Tan et al. p. 112

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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	()

Rank	Name	Author
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Saurischia	()
—	Sauropoda	()
—	Gravisauria
—	Eusauropoda
—	Mamenchisauridae	()
genus	Omeisaurus
species	fuxiensis

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.

†Omeisaurus fuxiensis Dong et al. 1983

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Diagnosis

Reference	Diagnosis
G. Peng et al. 2005	Smaller Omeisaurus recognized by low and elongate skull; narrow occipital region; long and low snout; small teeth with low crowns; dental formula Pm4 + M14 / D17~19; and elongate axis without ventral keel.

Measurements

No measurements are available

Composition:

hydroxyapatiteinfrao

Entire body:

yesg

Adult length:

10 to < 100infrao

Adult width:

10 to < 100infrao

Adult height:

10 to < 100infrao

Thickness:

thickinfrao

Architecture:

compact or denseinfrao

Form:

sphericalinfrao

Ontogeny:

accretion, modification of partsinfrao

Grouping:

gregariousinfrao

Environment:

terrestrialinfrao

Locomotion:

actively mobileinfrao

Life habit:

ground dwellinginfrao

Diet:

herbivoreinfrao

Reproduction:

oviparousinfrao

Dispersal:

direct/internalinfrao

Dispersal 2:

mobileinfrao

Created:

2005-08-24 13:36:35

Modified:

2005-08-24 15:36:35

Source: g = genus, infrao = infraorder

References: Marsh 1875, Peczkis 1995

Age range: base of the Bathonian to the top of the Callovian or 168.30000 to 163.50000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Bathonian - Callovian	168.3 - 163.5	China (Sichuan)	Omeisaurus fuxiensis (type locality: 51914)