INVESTIGADORES
CARLINI Alfredo Armando
artículos
Título:
North American Glyptodontines (Xenarthra, Mammalia) in the Upper Pleistocene of northern South America.
Autor/es:
3- CARLINI A.A., A.E. ZURITA, O. AGUILERA
Revista:
PALAEONTOLOGISCHE ZEITSCHRIFT
Editorial:
SPRINGER HEIDELBERG
Referencias:
Año: 2008 vol. 82 p. 125 - 138
ISSN:
0031-0220
Resumen:
Abstract: The Glyptodontidae is one of the most conspicuous groups in the Pleistocene megafauna of the Americas.
The Glyptodontinae were involved in the Great American Biotic Interchange (GABI) and their earliest records in North
America are about 3.7 Ma, suggesting an earlier formation of the Panamanian land bridge. Taxonomically it is possible
to recognize two Pleistocene genera of Glyptodontinae: Glyptodon (ca. 1.7 0.008 Ma), restricted to South America,
and Glyptotherium (ca. 2.6 0.009 Ma), including records in both North and Central America. Here we present the
fi rst report of the genus Glyptotherium in South America, from the Late Pleistocene of several fosssil localities in Falcón
State, northwestern Venezuela. A comparative analysis of the material, represented by cranial and postcranial
parts, including the dorsal carapace and caudal rings, suggests a close affi nity with Glyptotherium cylindricum (Late
Pleistocene of Central Mexico). This occurrence in the latest Pleistocene of the northernmost region of South America
supports the bidirectional faunal migration during the GABI and the repeated re-immigration from North America of
South American clades, as has been reported in other members of the Cingulata (e.g., Pampatheriidae).