living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
               Subclass Lissamphibia Haeckel, 1866 see Infraclass Lissamphibia Haeckel, 1866
                 Order Caudata Scopoli, 1777
                   Suborder Ambystomatoidea see Order Caudata Scopoli, 1777
                     Family Plethodontidae Gray, 1850
                       01 Genus Eurycea Rafinesque, 1822
                       02 Genus Gyrinophilus Cope, 1869
                       03 Genus Hemidactylium Tschudi, 1838
                       04 Genus Leurognathus Moore, 1899 see Genus Desmognathus Baird, 1850
                       05 Genus Pseudotriton Tschudi, 1838
                       06 Genus Stereochilus Cope, 1869
                       07 Genus Aneides Baird, 1851
                       08 Genus Batrachoseps Bonaparte, 1839
                       09 Genus Ensatina Gray, 1850
                       10 Genus Plethodon Tschudi, 1838
                       11 Genus Desmognathus Baird, 1850
                       12 Genus Haideotriton Carr, 1939 see Genus Eurycea Rafinesque, 1822
                       13 Genus Typhlomolge Stejneger, 1896 see Genus Eurycea Rafinesque, 1822
                       14 Subfamily Desmognathinae Gray, 1850 see Subfamily Plethodontinae Gray, 1850
                       15 Subfamily Plethodontinae Gray, 1850
                       16 Genus Hydromantes Gistel, 1848
                       17 Genus Bolitoglossa Duméril, Bibron & Duméril, 1854