The Quaternary vertebrate fauna of the limestone cave Gruta do Ioiô, northeastern Brazil
AbstractThe present study reports the Quaternary vertebrate fauna of Gruta do Ioiô, a partially submerged limestone cave located in central Bahia, northeastern Brazil. A semi-arid weather prevails nowadays in the area, which is mostly covered by a xeric low arboreal scrubland known as Caatinga. The identified taxa include: Rhamdia (Osteichtyes, Siluriformes), Caiman (Crocodyliformes, Caimaninae), Myocastor cf. Myocastor coypus (Rodentia, Myocastoridae), Holochilus sciureus (Rodentia, Sigmodontinae), Natalus cf. Natalus macrourus (Chiroptera, Natalidae), Tonatia bidens, Trachops cirrhosus (Chiroptera, Phyllostomidae), and Eira cf. Eira barbara (Carnivora, Mustelidae). Whereas Rhamdia and Caiman have scarce fossil records, the recovered mammals have already been reported from Quaternary localities of northeastern Brazil, although only two of them are present in the current local fauna. Taphonomic signatures and the nature of the fossiliferous site indicate that the vertebrates lived ins Read more...
Mariela C. Castro
Publication date: 2014/11/26