Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Superphylum Articulata Cuvier see Supraphylum Articulata Cuvier
           Phylum Arthropoda Siebold, 1848 - arthropods
             Subphylum †Trilobita (Walch, 1771)
               1 Order †Agnostida Salter, 1864
               2 Order †Redlichiida Richter, 1932
               3 Order †Corynexochida Kobayashi, 1935
               4 Order †Ptychopariida Swinnerton, 1915
               5 Order †Phacopida Salter, 1864
               6 Order †Lichida Moore, 1959
               7 Order †Odontopleurida Whittington, 1959