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Yunnanosaurus robustus

Reptilia

Taxonomy
Yunnanosaurus robustus was named by Young (1951). Its type specimen is IVPP V93, a partial skeleton, and it is a 3D body fossil. Its type locality is Huangchiatien, Lufeng, which is in a Sinemurian terrestrial horizon in the Lufeng Formation of China.

It was synonymized subjectively with Lufengosaurus huenei by Rozhdestvensky (1965), Galton and Cluver (1976); it was synonymized subjectively with Yunnanosaurus huangi by Galton and Upchurch (2004).

Synonymy list
YearName and author
1951Yunnanosaurus robustus Young p. 58 figs. 12-14
1961Yunnanosaurus robustus Hu pp. 280-281
1965Yunnanosaurus robustus Simmons p. 63
1967Yunnanosaurus robustus Charig p. 712
1970Yunnanosaurus robustus Steel p. 52
1992Yunnanosaurus robustus Dong p. 163
2010Yunnanosaurus robustus Bandyopadhyay et al. p. 536
2012Yunnanosaurus robustus Barrett and Xu p. 156
2017Yunnanosaurus robustus Wang et al. p. 178
2020Yunnanosaurus robustus Moro et al.
2020Yunnanosaurus robustus Peyre de Fabrègues et al. p. 4 fig. 4
2021Yunnanosaurus robustus Peyre de Fabrègues et al. p. 324
2022Yunnanosaurus robustus Yao et al. p. 4

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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()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Eusaurischia
—Sauropodomorpha(Huene 1932)
—Massopoda
—Sauropodiformes
genusYunnanosaurus
speciesrobustus

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.

†Yunnanosaurus robustus Young 1951
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Diagnosis
ReferenceDiagnosis
C.-C. Young 1951Size nearly twice larger than Yunnanosaurus huangi, but the proportion of the limbs is very close to each other. Teeth with shorter crown but more advanced degree of spatulation. Only posterior side of the teeth is serrated more distinctly than in the case of Yunnanosaurus huangi. Tibia only slightly shorter than the femur. All the long bones are massively built. Ilium rather low. Foot is longer stretched in contrast to the extremely short hand.
Measurements
No measurements are available
Composition: phosphaticsubp
Entire body: yesg
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2005-08-24 13:31:31
Modified: 2005-08-24 15:31:31
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Peczkis 1995

Age range: Sinemurian or 199.50000 to 192.90000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Sinemurian199.5 - 192.9China (Yunnan) Yunnanosaurus robustus (type locality: 49773 66926 72091 78993)