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
Diadectosalamandroidei D.R. Frost et al., 2006
Plethosalamandroidei D.R. Frost et al., 2006
Xenosalamandroidei Frost et al., 2006
Family Plethodontidae Gray, 1850
Subfamily Bolitoglossinae Hallowell, 1856
Genus Thorius Cope, 1869