Phylum Arthropoda Siebold, 1848 - arthropods
   Subphylum †Artiopoda Hou & Bergström, 1997
     †Conciliterga Hou & Bergström, 1997
       1.1 Genus †Kuamaia Hou, 1987
       1.2 Genus †Helmetia Walcott, 1918
       2.1 Genus †Skioldia X. Hou & J. Bergström, 1997
       2.2.1 Genus †Tegopelte Simonetta & Delle Cave, 1975
       2.2.2 Genus †Saperion Hou et al., 1991