[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 †Elegestolepidida Andreev, Coates, Karatajute-Talimaa, Shelton, Cooper & Sansom, 2017
             1 Family †Kannathalepididae Märss & Gagnier, 2001
             2 Family †Elegestolepididae Andreev, Coates, Karatajūtė-Talimaa, Shelton, Cooper & Sansom, 2017