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 †Anthracosauria Säve-Söderbergh, 1934
               Suborder †Seymouriamorpha Watson, 1917 see Order Seymouriamorpha Watson, 1917
                 Family †Discosauriscidae Romer, 1947 see Subfamily Discosauriscinae Romer, 1947
                   1 Genus †Ariekanerpeton Ivakhnenko, 1981
                   2 Genus †Discosauriscus Kuhn, 1933
                   3 Genus †Letoverpeton Spinar, 1952
                   4 Genus †Urumgia Carroll, 1988, nom. inval. see Genus Urumqia Zhang, Li & Wan, 1984
                   5 Genus †Utegenia Kuznetsov & Ivakhnenko, 1981