Les Cervidae (Mammalia, Artiodactyla) du Pléistocène supérieur-Holocène ancien de la région du Parc National Serra da Capivara (Piauí, Brésil) |
| |
Authors: | Claude Guérin Martine Faure |
| |
Institution: | a UFR des sciences de la Terre, UMR-CNRS 5125 « paléoenvironnements et paléobiosphere », université Claude-Bernard Lyon-1, campus de la Doua, bâtiment Géode, 43, boulevard du 11-Novembre, 69622 Villeurbanne cedex, France b Fundação Museu do Homem Americano, São Raimundo Nonato, Piauí, Brésil c Université Lumière Lyon 1, 7, rue Raulin, 69007 Lyon, France |
| |
Abstract: | The Upper Pleistocene/Lower Holocene fossil-bearing sites of the Serra da Capivara National Park Region have yielded three cervid species: Mazama gouazoubira, M. americana and Blastocerus dichotomus, all currently living in South America, the two first in the region. A grand total of more than one hundred remains demonstrates the presence of Mazama gouazoubira in seven sites, mainly the Toca das Moendas, the Toca do Serrote do Artur, the Toca da Cima dos Pilão. This small species shows, since the Upper Pleistocene, a conspicuous tendency to reduce the average dimensions of its teeth and long bones. From the taller M. americana, only a dozen of remains were found in four sites, mainly the Sitio do Meio. In all of these it is sympatric with M. gouazoubira. It differs from this last one by its cheek teeth and its limb bones size and proportions. The oldest site where the species is known is Tarija (Bolivia, Middle Pleistocene) and it does not show any significant changes in size and proportions between recent and fossil samples. Sixteen remains of the large B. dichotomus were found in five sites, mainly the Toca das Moendas and the Toca da Barra do Antonião. The species is a rare fossil, but is frequently figured in the rock art painting of the region, where it is presently unknown. |
| |
Keywords: | Mammalia Bré sil Plé istocè ne supé rieur-Holocè ne ancien Mazama Blastocerus Biomé trie É volution |
本文献已被 ScienceDirect 等数据库收录! |
|