Order Testudines Wagler, 1830 - turtles
   Suborder Cryptodira Cope, 1868
     Superfamily Kinosternoidea Agassiz, 1857
       Family Kinosternidae Agassiz, 1857 - mud and musk turtles
         Subfamily Kinosterninae Agassiz, 1857
           Genus Sternotherus Bell, 1825
             Sternotherus carinatus (Gray, 1856) - razor-backed musk turtle