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Tropidemys

Reptilia

Synonyms
Synonymy list
YearName and author
1862Chelonia valanginiensis Pictet and Campiche
1873Tropidemys Rütimeyer p. 40
1878Chelonides robusta Portis
1878Tropidemys Portis p. 18
1889Tropidemys Lydekker pp. 155-156
1958Tropidemys Delair p. 55
1965Tropidemys Bräm p. 174
1988Tropidemys Carroll
1996Tropidemys Lapparent de Broin et al. p. 557
2014Tropidemys Anquetin et al.
2014Tropidemys Puntener et al.
2015Tropidemys Pérez-García
2017Tropidemys Anquetin et al.
2020Tropidemys Joyce and Mäuser

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
Thalassochelydia
genusTropidemys

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.

G. †Tropidemys Rütimeyer 1873
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Tropidemys langii Rütimeyer 1873
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Invalid names: Craspedochelys plana Rütimeyer 1873 [synonym], Tropidemys expansa Rütimeyer 1873 [synonym], Tropidemys gibba Rütimeyer 1873 [synonym]
Tropidemys seebachi Portis 1878
Invalid names: Chelonia valanginiensis Pictet and Campiche 1862 [nomen dubium], Chelonides robusta Portis 1878 [nomen dubium]
Diagnosis
ReferenceDiagnosis
J. Anquetin et al. 2017Tropidemys can be diagnosed as a “plesiochelyid” by the full list of shell characters provided for that taxon above. Tropidemys is currently differentiated from all other “ple- siochelyids” by particularly thick shell bones, a posteriorly tec- tiform carapace, a greatly reduced or absent nuchal notch, keeled neurals (more pronounced posteriorly), wide and hexagonal intermediate and posterior neurals with anterolateral sides as long as posterolateral sides, retention of costo-peripheral fontanelles in juveniles (closed in adults), and narrow vertebral scutes.