Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
         Myopterygii - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Chondrichthiomorphi
               1 ?Order †Mongolepidida Karatajute-Talimaa, 1998
               2.1 ?Family †Kannathalepididae Märss & Gagnier, 2001
               2.2 ?Family †Wellingtonellidae Märss, Wilson & Thorsteinsson, 2002
               3 ?Genus †Emsolepis
               4 Class Chondrichthyes Huxley, 1880 - cartilaginous fishes