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 1 Hydatinosalamandroidei D.R. Frost et al., 2006 2 Plethosalamandroidei D.R. Frost et al., 2006