CONICET | Buscador de Institutos y Recursos Humanos

Paleontology and chronology of the Quaternary from the Corrientes and Formosa provinces, Argentina. In the last years, an important improvement on the In the last years, an important improvement on the paleontological knowledge from the Corrientes and Formosa provinces (Argentina) has been observed. This included the exhumation of numerous fossils specimen with strict stratigraphic and geographic control, and new absolute dating and OSL). In the Corrientes province, the Pleistocene is represented by the Toropí and Yupoí formations (late Pleistocene). Until now the palaeofauna recovered is mostly composed of mammalian, but including also a few reptiles. This association is formed mainly by pampean taxa; however, some intetropical taxa have been detected. In turn, in the Formosa province, the Pleistocene is represented by the Río Bermejo Formation, where the fossiliferous section have been dated using at ca. 9.5 ka. As in Corrientes province, most of the palaeofauna belongs to mammalian, but including a few fish and reptiles. All the recognized taxa (except the Pampatheriidae suggest the presence of arid/semiarid and cool environments, which is in agreement whit the inferred condition for the early Holocene. The improvement of the knowledge of these paleofaunistic associations is a key factor, because it allows making more accurate comparisons with other regions of South America. and OSL). In the Corrientes province, the Pleistocene is represented by the Toropí and Yupoí formations (late Pleistocene). Until now the palaeofauna recovered is mostly composed of mammalian, but including also a few reptiles. This association is formed mainly by pampean taxa; however, some intetropical taxa have been detected. In turn, in the Formosa province, the Pleistocene is represented by the Río Bermejo Formation, where the fossiliferous section have been dated using C14 at ca. 9.5 ka. As in Corrientes province, most of the palaeofauna belongs to mammalian, but including a few fish and reptiles. All the recognized taxa (except the Pampatheriidae Holmesina paulacoutoi suggest the presence of arid/semiarid and cool environments, which is in agreement whit the inferred condition for the early Holocene. The improvement of the knowledge of these paleofaunistic associations is a key factor, because it allows making more accurate comparisons with other regions of South America. Pleistocene, Holocene, Northern Argentina, Diversity. Pleistocene, Holocene, Northern Argentina, Diversity.