[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] Opiliones Sundevall, 1833 - harvestmen
         Phalangida Bristowe, 1949
           1 Family †Archaeometidae Petrunkevitch, 1949 [monotypic]
           2 Suborder Eupnoi Hansen & Sørensen, 1904 - daddy longlegs
           3 Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen
           4 Suborder Laniatores Thorell, 1876 - armored harvestmen