Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Class Amphibia Gray, 1825 [paraphyletic]
           Subclass †Lepospondyli Zittel, 1888 see Superorder Lepospondyli Zittel, 1887
             Order †Microsauria Dawson, 1863
               Suborder †Microbrachomorpha Carroll & Gaskill, 1978
                 Family †Brachystelechidae Carroll & Gaskill, 1978