Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum †Trilobitomorpha Størmer, 1944 - trilobites see Superclass Trilobitomorpha Størmer, 1944 Class †Trilobita Walch, 1771 - trilobites Order †Asaphida Salter, 1864 Superfamily †Asaphoidea Burmeister, 1843 1 Family †Asaphidae Burmeister, 1843 2 Family †Ceratopygidae Linnarsson, 1869