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 †Actinolepidoidei Miles, 1973
                     Family †Actinolepidae Gross, 1940
                       1 Genus †Actinolepis Agassiz, 1845
                       2 Genus †Aethaspis Denison, 1958
                       3 Genus †Bollandaspis Schultze, 1976
                       4 Genus †Eskimaspis Dineley & Liu Yuhai, 1984
                       5 Genus †Heightingtonaspis White, 1969
                       6 Genus †Kujdanowiaspis Stensiö, 1942