[Phylum] Chordata Bateson, 1885 - chordates
   Subphylum Craniata auct.
     Infraphylum Vertebrata Lamarck, 1801 - vertebrates
       Superclass †Osteostracomorphi
         Class †Galeaspidomorphi
           Superorder †Polybranchiaspidida Zhu & Gai, 2007
             Order †Huananaspidiformes Janvier, 1975
               Family †Sanchaspididae Pan & Wang, 1981, nom. praeval.
                 1 Genus †Sanchaspis Pan & Wang, 1981