BECAS
ARANCIAGA ROLANDO Alexis Mauro
artículos
Título:
Oldest Record of the Pit-Viper Bothrops Duméril, Bibron & Duméril, 1854 (Squamata, Viperidae), from the Lower Pliocene of Buenos Aires Province, Argentina
Autor/es:
VIVIANA BUIDE
Revista:
South American Journal of Herpetology
Editorial:
Brazilian Society of Herpetology
Referencias:
Lugar: São Paulo, SP, Brazil; Año: 2020
ISSN:
1808-9798
Resumen:
The fossil record of the genus Bothrops is still sparse in South America. Most recordsbelong to extant species recovered in strata not older than late Pleistocene. Thegenus was also tentatively reported from the early Pliocene and early-middlePleistocene of Buenos Aires province, Argentina, based on fragmentary specimens.The aim of the present contribution is to report a partial vertebral column of a viperidsnake discovered in the lower Pliocene layers of Farola de Monte Hermoso locality, atsouthern Buenos Aires province. The specimen can be referred to the extant genusBothrops, representing the oldest occurrence for this taxon. This finding supports thehypothesis sustained by previous authors that indicate an ?stasis? in the evolution ofthe South American herpetofauna since late Neogene, at least.
