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
             Order †Temnospondyli Zittel, 1888 - temnospondyls
               Superfamily †Trimerorhachoidea Case, 1946
                 Family †Trimerorhachidae Cope, 1882 - trimerorhachids