A new bothremydid turtle (Pleurodira) from the Olmos Formation (upper Campanian) of Coahuila, Mexico

摘要: Abstract During the Late Cretaceous, pleurodiran turtles were taxonomically diverse and, inhabited a variety of environments, within practically worldwide distribution. Among this group, most widespread at that time was Bothremydidae, which represented in North America by four taxa: Algorachelus tibert, Chedighaii hutchisoni, barberi, and Bothremys cooki. Nevertheless, presence Bothremydidae Mexico is so far very scarce, few reports recognized indeterminate generic level have, not been analyzed detail. In paper we describe first Bothremydini from Mexico, collected coal mine Coahuila Cretaceous Olmos Formation (upper Campanian). The mines region are known for their paleoflora, but turtle specimen vertebrate to be notified. This displays unique combination characters allows its attribution new representative, Palauchelys montellanoi gen. et sp. nov., thus expanding knowledge about diversity group American record.