vertebrates Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
     Subclass †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758
       Order †Temnospondyli Zittel, 1888 - temnospondyls
         1 Suborder †Rhachitomi Cope, 1882 see [unranked] Rhachitomi Cope, 1882
         2 Suborder †Stereospondyli Zittel, 1888 see [unranked] Stereospondyli Fraas, 1889