NUEVOS REGISTROS DE MAMÍFEROS DEL PLEISTOCENO TARDÍO (MIS 5) EN EL SUR DE LA MESOPOTAMIA ARGENTINA

New records of mammals from the Late Pleistocene province Entre Ríos are presented in this contribution. The fossils come Salto Ander Egg Formation, a unit which is deposited fluvial valleys southwest and dated between 120 ka 60 by OSL. It interpreted that formation sequences were accumulated during MIS 5. paleontological content constitutes record best characterizes beginning for South America 5e-MIS 5c transition. In work 12 taxa described: cf. Ozotoceros bezoarticus (Cervidae), Morenelaphus brachyceros Hemiauchenia paradoxa (Camelidae), Lama guanicoe Mylodon darwini (Mylodontidae), Glossotherium robustum Lestodon armatus Glyptodon reticulatus (Glyptodontidae), Panochthus tuberculatus Eutatus seguini (Dasypodidae), Notiomastodon platensis (Gomphotheriidae), Toxodon (Toxodontidae). Most them new more complete specimens than those previously known unit. represents first extending its geographic distribution widely. addition, fossiliferous locality corresponding to Arroyo El Bellaco (Diamante Department) revealed number Pelado site, until now was only three finds, increases notably.