Ictiofauna y herpetofauna del pleistoceno superior continental de la localidad de Salto, provincia de Buenos Aires, Argentina

Abstract

In contrast with the present knowledge of the Upper Pleistocene paleomastofaunas of the Pampean region, the fossil ichthyofaunas and herpetofaunas are poorly known. In the present paper we describe fossil remains of fishes, anurans, and chelonians recovered on sedimentary sequences corresponding to the Lujanian Stage (Upper Pleistocene) from the outcrops of the Salto-Arrecifes River at Salto city, Buenos Aires Province, Argentina. Among fossil fishes, four different taxa, belonging to the families Silurifor mes Callichthyidae, Loricariidae, Pimelodidae, and Heptapteridae were recovered. All the recorded species are currently present in the locality. Among anurans, only a single element referable to the subfamily Ceratophryinae was recovered, whereas among chelonians at least two different species are registered. In addition, it is worth to mention the presence of the Testudinidae cf. Chelonoidis far away from its current geographic distribution.