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
             1 Pseudemys alabamensis Baur, 1893 - Alabama red-bellied cooter
             2 Pseudemys concinna (Le Conte, 1830) - river cooter
             3 Pseudemys floridana (Le Conte, 1830) - coastal plain cooter
             4 Pseudemys gorzugi Ward, 1984 - Rio Grande cooter
             5 Pseudemys nelsoni Carr, 1938 - Florida red-bellied cooter
             6 Pseudemys peninsularis Carr, 1938 - peninsula cooter
             7 Pseudemys rubriventris (Le Conte, 1830) - northern red-bellied cooter
             8 Pseudemys texana Baur, 1893 - Texas cooter