Chelicerata Heymons, 1901
   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