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Perochelys hengshanensis

Osteichthyes - Testudines - Trionychidae

Taxonomy
Perochelys hengshanensis was named by Brinkman et al. (2017). Its type specimen is ZMNH M8750, a partial skeleton (articulated skeleton in ventral view, missing the anterior and right three quarters of the skull, lateral half of the right plastron, and a section through the ), and it is a 3D body fossil. Its type locality is Duntu Basin, Hengshan Formation (soft-shelled turtle locality), which is in an Albian lacustrine - small horizon in the Hengshan Formation of China.

Synonymy list
YearName and author
2017Perochelys hengshanensis Brinkman et al. p. 3 figs. 2-4

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
RankNameAuthor
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
familyTrionychidaeGray 1825
subfamilyKuhnemydinae
genusPerochelys
specieshengshanensis

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.

Perochelys hengshanensis Brinkman et al. 2017
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Diagnosis
ReferenceDiagnosis
D. Brinkman et al. 2017Similar to Perochelys lamadongensis and Petrochelys kyrgyzensis in the proportions of the carapace and plastron, but differing in that the lateral end of the nuchal is broader, the mid-ventral plastral fenestra is shorter antero-posteriorly and wider medio-laterally, two lateral processes of the hyoplastron are separated by a groove that extends medially to the axillary notch, medial sutural edge of hyoplastron formed by numerous elongate, needle-like processes, the metischial process of the ischium is broader and points more strongly posteriorly, and the plastron lacks sculpturing.
Measurements
No measurements are available
Composition: phosphaticsubp
Body part: carapacef
Adult length: 100 to < 1000f
Grouping: solitaryf
Environment: brackish, freshwaterf
Locomotion: actively mobilef
Life habit: aquaticf
Diet: piscivoref
Diet 2: carnivoref
Reproduction: oviparousf
Created: 2005-08-25 13:24:04
Modified: 2005-09-09 19:45:41
Source: f = family, subp = subphylum
References: Carroll 1988, Ernst and Barbour 1989

Age range: Albian or 113.20000 to 100.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Albian113.2 - 100.5China (Zhejiang) Perochelys hengshanensis (type locality: 187435)