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 †Corynexochida Kobayashi, 1935
           Suborder †Illaenina Jaanusson, 1959 [monophyletic?]
             1 Family †Illaenidae Hawle & Corda, 1847
             2 Family †Panderiidae Bruton, 1968
             3 Family †Styginidae Vogdes, 1890
             4 Family †Tsinaniidae Kobayashi, 1935