living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
       Subsuperphylum Dexiothetica Jefferies, 1979
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
             Vertebrates (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
               Superclass Agnatha Haeckel, 1895 see Class Agnatha Cope, 1889
                 Class Monorhina Haeckel, 1895 see Class Cephalaspidomorphi Moy-Thomas & Mile, 1971
                   Subclass †Galeaspida Halstead, 1982 see Order Galeaspidiformes
                     Order †Polybranchiaspidiformes Liu, 1965 see Order Galeaspidiformes
                       Family †Hanyangaspididae Pan & Liu, 1975