info:eu-repo/semantics/article
Early Cretaceous neobatrachian frog (Anura) from Brazil sheds light on the origin of modern anurans
Fecha
2020-08Registro en:
Agnolin, Federico; de Souza Carvalho, Ismar; Aranciaga Rolando, Alexis Mauro; Novas, Fernando Emilio; Xavier Neto, José; et al.; Early Cretaceous neobatrachian frog (Anura) from Brazil sheds light on the origin of modern anurans; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 101; 8-2020; 1-8
0895-9811
CONICET Digital
CONICET
Autor
Agnolin, Federico
de Souza Carvalho, Ismar
Aranciaga Rolando, Alexis Mauro
Novas, Fernando Emilio
Xavier Neto, José
Andrade, José Artur Ferreira Gomes de
Idalécio Freitas, Francisco
Resumen
The fossil record of anurans in South America is scarse, especially for Mesozoic-aged beds. The aim of the present paper is to describe a new neobatrachian anuran coming from the Early Cretaceous (Aptian) Crato Formation from Brazil. The specimen, represented by a nearly complete skeleton is reminiscent to the extant clade Hyloidea. In contrast with recent claims, this finding, together with previously known fossils from South America indicates that modern frog clades were present and well-diversified by 40 million years before the K/T boundary. In the same sense, the analysis of Mesozoic and Paleogene anuran record in South America contradicts the hypothesis of massive anuran extinction at the K/T boundary.