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) Genus Onychodactylus Tschudi, 1838