Order Testudines Wagler, 1830 - turtles
   Suborder Cryptodira Cope, 1868
     Superfamily Testudinoidea Batsch, 1788
       Family Emydidae Rafinesque, 1815 - pond turtles
         Subfamily Deirochelyinae Agassiz, 1857
           Genus Deirochelys Agassiz, 1857 [monotypic]
             Deirochelys reticularia (Latreille, 1801) - chicken turtle
               Deirochelys reticularia miaria Schwartz, 1956 - western chicken turtle