Phylum [Vertebrata] (Lamarck, 1801)
   Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
     Subclass †Lepospondyli Zittel, 1888 see Superorder Lepospondyli Zittel, 1887
       Order †Microsauria Dawson, 1863
         1 Family †Pantylidae Case, 1911
         2 Family †Microbrachidae Fritsch, 1883