Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Ricinulei Thorell, 1876 - ricinuleids
           Suborder †Palaeoricinulei Selden, 1992
             Superfamily †Curculioidoidea Cockerell, 1916
               1 Family †Curculioididae Cockerell, 1916
               2 Family †Poliocheridae Scudder, 1884