[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Animalia Linnaeus, 1758 - animals
     Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
           Chordata Bateson, 1885 - chordates
             Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
               Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
                 Amphibia Gray, 1825
                   †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758
                     †Ichthyostegalia (Save-Soderbergh, 1932) see Superclass Tetrapoda Goodrich, 1930
                       †Ichthyostega Säve-Söderbergh, 1932