Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Opiliones Sundevall, 1833 - harvestmen
           Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen
             Superfamily Ischyropsalidoidea Simon, 1879
               1 Family Ceratolasmatidae Shear, 1986 see Subfamily Ceratolasmatinae Shear, 1986
               2 Family Ischyropsalididae Simon, 1879
               3 Family Sabaconidae Dresco, 1970