Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Class Amphibia Gray, 1825 [paraphyletic]
           Subclass †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758
             1 Order †Ichthyostegalia (Save-Soderbergh, 1932) see Superclass Tetrapoda Goodrich, 1930
             2 Superfamily †Loxommatoidea Watson, 1929
             3 Order †Temnospondyli Zittel, 1888 - temnospondyls
             4 Order †Anthracosauria Säve-Söderbergh, 1934