[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] Opiliones Sundevall, 1833 - harvestmen
         Phalangida Bristowe, 1949
           Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen
             Superfamily Troguloidea Sundevall, 1833
               1 Family Dicranolasmatidae Simon, 1879
               2 Family †Eotrogulidae Petrunkevitch, 1955 [monotypic]
               3 Family Nemastomatidae Simon, 1872
               4 Family †Nemastomoididae Petrunkevitch, 1955 [monotypic]
               5 Family Nipponosalididae Dunlop, Penney & Jekel, 2010, orth. inval. see Family Nipponopsalididae Martens, 1976
               6 Family Trogulidae Sundevall, 1833 [monotypic]