Tanystropheid archosauromorphs in the Lower Triassic of Gondwana

Autor: Tiane Macedo De Oliveira, Daniel Oliveira, Cesar L. Schultz, Leonardo Kerber, Felipe L. Pinheiro
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Acta Palaeontologica Polonica, Vol 63, Iss 4, Pp 713-723 (2018)
Druh dokumentu: article
ISSN: 0567-7920
1732-2421
DOI: 10.4202/app.00489.2018
Popis: Tanystropheidae is a clade of early archosauromorphs with a reported distribution ranging from the Early to the Late Triassic of Asia, Europe, and North America. Although some specimens with possible tanystropheid affinities from the Lower Triassic beds of Brazil have been previously attributed to “Protorosauria”, little is known about the tanystropheid record in Gondwana. Here, two new and one previously reported specimen from the Sanga do Cabral Formation (Induan–Olenekian) of Brazil are described and interpreted as ?Tanystropheidae. These records, together with other tetrapods previously reported for the Sanga do Cabral Formation, increase the knowledge of the biotic diversification during the beginning of the Triassic. This contribution reinforces that the archosauromorph diversification occurred shortly after the Permo-Triassic extinction, making the Sanga do Cabral Formation an important unit for the study of early Mesozoic faunas.
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