Descriptions of new species of turtles of the genus Testudo, collected from the Miocene by the Carnegie Museum; together with a description of the skull of Stylemys nebrascensis

Abstract

Examination of most of the specimens,including holotypes,of cabassous that are extant in the major collections indicates the following taxa and distributions: C. centralis(Miller), Central and South America to northwestern Venezuela; C. unicinctus unicinetus (L.),east of the Andes and north of the Amazon; C. u. squamicaudis( Lund),intergrading with C. u. unicinctus along the Amazon-Solimões and thence south to the Mato Grosso;C . chacoensis, a new species of the Gran Chaco; C. tatouay( Desmarest),from the southeastern highlands of Brazil to Uruguay and northeastern Argentina;and a larger