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
               01 Suborder †Embolomeri see Order Embolomeri
               02 Suborder †Gephyrostegida [monotypic]
               03 Suborder †Seymouriamorpha Watson, 1917 see Order Seymouriamorpha Watson, 1917
               04 Family †Lanthanosuchidae Efremov, 1946
               05 Family †Chroniosuchidae Vjushkov, 1957
               06 Family †Limnoscelidae Romer, 1945
               07 Family †Solenodonsauridae Broili, 1924
               08 Family †Tseajaiidae Vaughn, 1964
               09 Family †Tokosauridae Tverdokhlebova & Ivakhnenko, 1984
               10 Family †Nycteroleteridae Romer, 1956