Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Superclass †Trilobitomorpha Størmer, 1944, stat. inval. see Superclass Trilobitomorpha Størmer, 1944
       Class †Trilobita Walch, 1771 - trilobites
         Order †Polymerida
           Genus †Alokistocare Lorenz, 1906
           Genus †Aphelaspis Resser, 1935
           Genus †Apianurus Whittington, 1956
           Genus †Asaphus Brongniart, 1822
           Genus †Bathyuriscus Meek, 1873
           Genus †Bathyurus Billings, 1859
           Genus †Cedaria Walcott, 1924
           Genus †Ceraurinella Cooper, 1953
           Genus †Cryptolithus Green, 1832
           Family †Dalmanitidae Vogdes, 1890
           Genus †Dipleura Green, 1832
           ?Superfamily †Eodiscacea see Superfamily Eodiscoidea Raymond, 1913
           Genus †Flexicalymene Shirley, 1936
           Genus †Glossopleura Poulsen, 1927
           Genus †Illaenus Dalman, 1827
           Genus †Isotelus DeKay, 1824
           Genus †Modocia Walcott, 1924
           Family †Olenellidae Walcott, 1890
           Genus †Olenus Dalman, 1826
           Genus †Paradoxides Brongniart, 1822
           Family †Phacopididae see Family Phacopidae Hawle & Corda, 1847
           Family †Phillipsiidae Oehlert, 1886 see Family Proetidae Salter, 1864
           Family †Redlichiidae Poulsen, 1927
           Genus †Remopleurides Portlock, 1843
           Genus †Saukia Walcott, 1914
           Genus †Thoracocare Robison & Campbell, 1974
           Genus †Zacanthoides Walcott, 1888