Kingdom [Animalia] Linnaeus, 1758 - animals
Subkingdom Metazoa Haeckel, 1874
see Kingdom Animalia Linnaeus, 1758
Division Eumetazoa Butschli, 1910
see Subkingdom Eumetazoa Butschli, 1910
Subdivision Bilateralia
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Amphibia Linnaeus, 1758 - amphibians
see Class Amphibia Gray, 1825
Subclass Urodelomorpha Säve-Söderbergh, 1934
see Order Urodela Dumeril, 1806
Order Caudata Scopoli, 1777
Suborder Cryptobranchoidea Dunn, 1922
see [unranked] Cryptobranchoidei Noble, 1931
Family Hynobiidae Cope, 1859 (1856)
Genus Onychodactylus Tschudi, 1838