[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Thelodontomorphi Jaekel, 1911 [monotypic]
         Class †Thelodonti Jaekel, 1911
           Order †Thelodontiformes Kiaer, 1932
             1 Family †Thelodontidae Jordan, 1905 (1856)
             2 Family †Eestilepididae Märss, Wilson & Thorsteinsson, 2002
             3 Family †Turiniidae Obruchev, 1964
             4 Family †Talivaliidae Märss, Wilson & Thorsteinsson, 2002