vertebrates Cuvier, 1812 - vertebrates
Class Amphibia Linnaeus, 1758 - amphibians
see Class Amphibia Gray, 1825
Subclass Lissamphibia Haeckel, 1866
see Infraclass Lissamphibia Haeckel, 1866
Order Urodela Dumeril, 1806
see Order Caudata Scopoli, 1777
Suborder Cryptobranchoidea Dunn, 1922
see [unranked] Cryptobranchoidei Noble, 1931
Family Cryptobranchidae Fitzinger, 1826