[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Anaspidomorphi
         Class †Anaspida Traquair
           Order †Anaspidiformes
             Family †Pterygolepididae Obruchev, 1964, "nom. praeval."
               Genus †Pterolepidops Fowler, 1947