BECAS
ARANCIAGA ROLANDO Alexis Mauro
artículos
Título:
Early Cretaceous neobatrachian frog (Anura) from Brazil sheds light on the origin of modern anurans.
Autor/es:
FERNANDO E. NOVAS
Revista:
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2020
ISSN:
0895-9811
Resumen:
The fossil record of anurans in South America is scarse, especially for Mesozoic-aged beds. The aim of the presentpaper is to describe a new neobatrachian anuran coming from the Early Cretaceous (Aptian) Crato Formationfrom Brazil. The specimen, represented by a nearly complete skeleton is reminiscent to the extant cladeHyloidea. In contrast with recent claims, this finding, together with previously known fossils from South Americaindicates 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 thehypothesis of massive anuran extinction at the K/T boundary
