Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Opiliones Sundevall, 1833 - harvestmen
           1 Suborder Cyphophthalmi Simon, 1879 - mite harvestmen
           2 Suborder Eupnoi Hansen & Sørensen, 1904 - daddy longlegs
           3 Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen
           4 Suborder Laniatores Thorell, 1876 - armored harvestmen