[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Osteostracomorphi
         Class †Galeaspidomorphi
           1 Order †Hanyangaspidiformes
           2 Order †Eugaleaspidiformes Pan, 1983
           3 Superorder †Polybranchiaspidida Zhu & Gai, 2007