Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
             Superclass Pisces Linnaeus, 1758 - fishes
               Class †Placodermi McCoy, 1848
                 Order †Antiarchi Cope, 1885 see [unranked] Antiarchi Cope, 1885
                 Order †Arthrodira Woodward, 1891 see [unranked] Arthrodira Woodward, 1891
                 Order †Ptyctodontida Gross, 1932 see Order Ptyctodontiformes
                 Order †Rhenanida Broili, 1930