Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Paleoecology and radiocarbon dating of the Pleistocene megafauna of the Brazilian Intertropical Region

2012; Cambridge University Press; Volume: 79; Issue: 1 Linguagem: Inglês

10.1016/j.yqres.2012.09.006

1096-0287

Mário André Trindade Dantas, Rodrigo Parisi Dutra, Alexander Cherkinsky, Daniel Fortier, Luciana Hiromi Yoshino Kamino, Mário Alberto Cozzuol, Adauto de Souza Ribeiro, Fabiana Silva Vieira,

Geology and Paleoclimatology Research

Abstract During the Pleistocene a fauna composed of large (biomass > 44 kg) and giant mammals (biomass > 1000 kg) that are usually associated with open environments lived in the Brazilian Intertropical Region. We present here new information concerning the paleoecology and chronology of some species of this megafauna. Carbon isotope analyses were performed for a better understanding of the paleoecology of the species Eremotherium laurillardi (Lund, 1842), Notiomastodon platensis (Ameghino, 1888) and Toxodon platensis (Owen, 1849). The δ 13 C data allow attributing a generalist diet to these species, which varied according to the kind of habitat in which they lived. In more open habitats all species were grazers; in mixed habitats E. laurillardi and T. platensis were mixed feeders, and N. platensis was grazer; and in more closed habitats all species were mixed feeders.