[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Osteostracomorphi
         Class †Galeaspidomorphi
           Order †Hanyangaspidiformes
             Family †Xiushuiaspididae Pan & Wang, 1983, nom. praeval.
               1 Genus †Xiushuiaspis Pan & Wang, 1983