[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
         Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
           Order †Altholepidiformes Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
             Family †Tazakidae van der Laan, 2018, orth. inval. see Family Tezakidae Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
               1 Genus †Tazakia van der Laan, 2018, orth. inval. see Genus Tezakia Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015