Primer registro de Tympanoctomys (Rodentia, Octodontidae) en ambientes xéricos del noroeste de la provincia de Córdoba, República Argentina

First record of Tympanoctomys (Rodentia, Octodontidae) in xeric environments of northwestern Cordoba province, Argentina. The genus Tympanoctomys includes four living species of octodontid rodents that inhabit halophytic shrub steppes of the central-western and south-central of Argentina. Based on the study of bone remains recovered from pellets of birds of prey, we confirmed the presence of this rodent in a perisaline sector of the Dry Chaco of Córdoba. This is the first record of specimens representing current populations of the taxon for the Province, which justifies the need for further studies on the diversity of small mammals in the region.