Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
   Amphibia Gray 1825 [Gauthier, Kluge & Rowe 1988] - amphibians see Class Amphibia Gray, 1825
     Batrachia Latreille, 1800
       Caudata Fischer von Waldheim, 1813 see Order Caudata Scopoli, 1777
         Cryptobranchoidei Noble, 1931
           Family Hynobiidae Cope, 1859 (1856)
             1 Genus Batrachuperus Boulenger, 1878
             2 Genus Hynobius Tschudi, 1838
             3 Genus Onychodactylus Tschudi, 1838
             4 Genus Pachyhynobius Fei, Qu & Wu, 1983
             5 Genus Protohynobius Fei & Ye, 2000
             6 Genus Ranodon Kessler, 1866
             7 Genus Salamandrella Dybowski, 1870