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Pelobatochelys blakii

Reptilia - Testudines - Thalassemydidae

Discussion

NHMUK R.2, NHMUK OR44177a, NHMUK OR44177, NHMUK OR44177b, and NHMUK OR41235 (paralectotypes), fragments of carapace with nuchal, neurals and costals, isolated pygal bone, and isolated peripheral bone

Taxonomy
Pelobatochelys blakii was named by Seeley (1875) [Lectotype]. Its type specimen is NHMUK R.2a (lectotype), a partial shell (central fragment of carapace with neurals IV–VI and fragments of adjoining costals), and it is a 3D body fossil. Its type locality is Smallmouth Sands (BMNH), which is in a Kimmeridgian marine claystone in the Kimmeridge Clay Formation of the United Kingdom.

It was recombined as Tropidemys blakii by Pérez-García (2015).

Synonymy list
YearName and author
1875Pelobatochelys blakii Seeley
1889Pelobatochelys blakei Lydekker pp. 153-155 fig. 37
1958Pelobatochelys blakei Delair p. 54
2015Tropidemys blakii Pérez-García
2017Pelobatochelys blakii Anquetin et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
—PancryptodiraJoyce et al. 2004
familyThalassemydidaeZittel 1889
genusPelobatochelysSeeley 1875
speciesblakiiSeeley 1875

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.

†Pelobatochelys blakii Seeley 1875
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Diagnosis
ReferenceDiagnosis
J. Anquetin et al. 2017Pelobatochelys blakii can be diagnosed as a thalas- sochelydian by the presence of three cervical scutes. Peloba- tochelys blakii differs from all other thalassochelydians by having thin and reduced costals that partly reveal the underlying thoracic ribs, elongated and keeled neurals, a waisted neural V, a tendency toward the fusion of posterior neurals, and a fluted pattern on the vertebral scutes.