[Phylum] [Arthropoda] Siebold, 1848 - arthropods
   Chelicerata Heymons, 1901
     Euchelicerata Weygoldt & Paulus, 1979
       [Order] Opiliones Sundevall, 1833 - harvestmen
         Phalangida Bristowe, 1949
           Suborder Eupnoi Hansen & Sørensen, 1904 - daddy longlegs
             Superfamily Phalangioidea Latreille, 1802
               Family Sclerosomatidae Simon, 1879
                 Genus †Mesobunus Huang, Selden & Dunlop, 2009