Phylum Chordata Bateson, 1885 - chordates
Status: extant; Count: -
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
  Status: extant; Count: -
     Class Reptilia Linnaeus, 1758 - reptiles
    Status: extant; Count: [*] 4o42f; †13o36f
       Subclass Anapsida Osborn, 1903 - anapsids
      Status: extant; Count: [*] 1o10f; †2o6f
         Order Testudines Wagler, 1830 - turtles
        Status: extant; Count: [*] 10f; †6f
           Suborder Cryptodira Cope, 1868
          Status: extant; Count: [*] 8f; †6f
             Family Kinosternidae Agassiz, 1857 - mud and musk turtles
            Status: extant; Count: -