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Stupendemys souzai

Reptilia - Testudines - Podocnemididae

Discussion

Named in honour of the palaeontologist Jonas Pereira de Souza Filho

Taxonomy
Stupendemys souzai was named by Bocquetin and Melo (2006). Its type specimen is UFAC 1764, a limb element (right humerus), and it is a 3D body fossil. Its type locality is Patos, Rio Acre, which is in a Miocene alluvial fan conglomerate/sandstone in the Solimoes Formation of Brazil.

Synonymy list
YearName and author
2006Stupendemys souzai Bocquetin and Melo p. 189 figs. 2-4
2007Stupendemys souzai Oliveira and Romano
2010Stupendemys souzai Riff et al.
2010Stupendemys souzai Sanchez-Villagra and Scheyer

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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
suborderPleurodira
familyPodocnemididae
subfamilyErymnochelyinaeBroin 1988
genusStupendemys
speciessouzai

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.

†Stupendemys souzai Bocquetin and Melo 2006
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Diagnosis
ReferenceDiagnosis
J. Bocquetin and J. Melo 2006Gigantic freshwater turtle; collar structure of the anterior margin of the carapace thick and not recurved; short and broad posterior lobe of the plastron with straight lateral sides; femoroanal sulcus of the xiphiplastron situated more anteriorly than in S. geographicus; humerus with a more slender and longer shaft than in S. geographicus; narrow centrum of the cervical vertebrae.