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 †Placodermiomorphi [monotypic]
               Class †Placodermi McCoy, 1848
                 Order †Arthrodiriformes Grande & Eastman, 1986 - arthrodires
                   Suborder †Phyllolepida Stensiö, 1934 [monotypic] see Suborder Phyllolepidoidei
                     Family †Phyllolepidae Woodward, 1891 see Family Phyllolepididae
                       1 Genus †Austrophyllolepis Long, 1984
                       2 Genus †Placolepis Ritchie, 1984
                       3 Genus †Phyllolepis Agassiz, 1843