A giant Testudininae tortoise (Chelonii : criptodira) from the Pleistoceneof Corrientes Province, Argentina.

Remains of a giant tortoise (Testudininae) were recovered from the Toropi F ormation (probably middle to upper Pleistocene) in Corrientes Province. A p artial carapace, an anterior plastral fragment and a left humerus of a sing le specimen are described herein. This specimen is tentatively referred to the genus Chelonoidis Fitzinger. Comparisons with additional material from other localities of the same region suggest a quite diverse giant tortoise fauna in the Mesopotamic area during the Pleistocene. The Arroyo Toropi spe cimen is associated with indicators of more arid environments than those pr evailing at present times in the Mesopotamia.