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Pelodiscus gracilia

Reptilia - Testudines - Trionychidae

Taxonomy
Amyda gracilia was named by Yeh (1963). Its type specimen is IVPP V 1038, a partial skeleton (partly complete carapace with parts of plastron, neck vertebrae and girdles), and it is a 3D body fossil. Its type locality is Gaozhuang Fauna (Teilhard de Chardin's Zone II), Yushe County, Shanxi Province, which is in the Ruscinian of horizon China.

It was recombined as Pelodiscus gracilia by Georgalis and Joyce (2017).

Synonymy list
YearName and author
1963Amyda gracilia Yeh
2008Amyda gracilia Brinkman et al. p. 74
2017Pelodiscus gracilia Georgalis and Joyce

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
RankNameAuthor
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
familyTrionychidaeGray 1825
Trionychinae(Gray 1825)
genusPelodiscus
speciesgracilia()

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.

Diagnosis
ReferenceDiagnosis
G. L. Georgalis and W. G. Joyce 2017Pelodiscus gracilia can be diagnosed as a member of Pan-Trionychidae by the full list of shell characters provided for that clade above and Pelodiscus by small size, absence of a preneural,
suprascapular fontanelles that only close in mature adults, and xiphiplastra that are broader than long. Pelodiscus gracilia can be differentiated from Pelodiscus sinensis by larger costals VIII.