INVESTIGADORES
ISLA Federico Ignacio
artículos
Título:
A NEW RECORD OF MEGATHERIUM (FOLIVORA, MEGATHERIIDAE) IN THE LATE PLIOCENE OF THE PAMPEAN REGION (ARGENTINA)
Autor/es:
CHIMENTO NICOLAS; AGNOLIN FEDERICO; BRANDONI DIEGO; BOH DANIEL ; MAGNUSSEN MARIANO; DE CIANNI FRANCISCO; ISLA FEDERICO
Revista:
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2020
ISSN:
0895-9811
Resumen:
The genus Megatherium includes nearly 10 species that are distributed along the Pleistocene of South America. In contrast with the abundant and geographically widespread Pleistocene record, remains of Pliocene Megatherium are restricted to highlands of PerĂº. The aim of the present contribution is to describe a skull referable to the genus Megatherium coming from Late Pliocene beds at the San Eduardo del Mar locality, Buenos Aires Province, Argentina. This constitutes the first undoubted record of Megatherium from the Pliocene of Argentina, and one of the oldest records for the genus. This finding blurs previous biogeographical proposals sustaining that the genus originate in the High Andes and later dispersed to the lowlands. On the contrary, present finding, together with the record of several roughly coeval Megatherium species in the Pleistocene of the Argentine Pampas, suggests a complex palaeobiogeographical scenario and indicates that the diversity of lowland Pliocene megatheriines is underrepresented.