Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Chelicerata Heymons, 1901
       Class Arachnida Lamarck, 1801
         Order Opiliones Sundevall, 1833 - harvestmen
           Suborder Laniatores Thorell, 1876 - armored harvestmen
             Infraorder Grassatores Kury, 2002
               Superfamily Gonyleptoidea Sundevall, 1833
                 1 Family Agoristenidae Šilhavý, 1973
                 2 Family Cosmetidae Koch, 1839
                 3 Family Cranaidae Roewer, 1913
                 4 Family Gonyleptidae Sundevall, 1833
                 5 Family Manaosbiidae Roewer, 1943
                 6 Family Stygnidae Simon, 1879
                 7 Family Stygnopsidae Sørensen, 1932