Order Testudines Wagler, 1830 - turtles Suborder Cryptodira Cope, 1868 Superfamily Testudinoidea Batsch, 1788 Family Emydidae Rafinesque, 1815 - pond turtles Subfamily Deirochelyinae Agassiz, 1857 Genus Pseudemys Gray, 1856 Pseudemys texana Baur, 1893 - Texas cooter