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
               Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
                 1 ?Genus †Altholepis Karatajute-Talimaa, 1997
                 2 ?Genus †Seretolepis Karatajute-Talimaa, 1968
                 3 ?Genus †Polymerolepis Karatajute-Talimaa, 1968
                 4 [plesion] Genus †Pucapampella Janvier & Suarez-Riglos, 1986
                 5.1 Subclass Holocephali Bonaparte, 1832
                 5.2 Subclass Elasmobranchii Bonaparte, 1838 - shark-like fishes