Changes of mammal assemblages in the pampean region (Argentina) and their relation with the Plio-Pleistocene boundary

• DOI: 10.1016/0031-0182(92)90140-z
• Publication Date: 2003-08-07T10:24:26Z
• Authors: Eduardo P. Tonni; María T. Alberdi; JoséL. Prado; María S. Bargo; Alberto L. Cione
• Keywords: 15. Life on land; 01 natural sciences; 0105 earth and related environmental sciences

Abstract A gradual impoverishment of autochthonous mammals in the southeastern pampean region (central eastern Argentina) during the Late Cenozoic is detected. It is partially coeval to the gradual immigration of holarctic mammals and to important climatic changes. We propose that the Plio-Pleistocene boundary (at around 2.5 Ma) in the area is located between the Vorohue “Formations” and the base of Miramar “Formations”.