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
             1 Sternotherus carinatus (Gray, 1856) - razor-backed musk turtle
             2 Sternotherus depressus Tinkle & Webb, 1955 - flattened musk turtle
             3 Sternotherus minor (Agassiz, 1857) - loggerhead musk turtle
             4 Sternotherus odoratus (Latreille, 1801) - musk turtle