[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] Opiliones Sundevall, 1833 - harvestmen
         Suborder Cyphophthalmi Simon, 1879 - mite harvestmen
           Infraorder Boreophthalmi Giribet, Sharma, Benavides, Boyer, Clouse, de Bivort, Dimitrov, Kawauchi, Murienne & Schwendinger, 2012
             1 Family Sironidae Leach, 1816 [monotypic]
             2 Family Stylocellidae Hansen & Sørensen, 1904 [monotypic]