[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 [plesion] Genus †Macrogyion Garwood, Dunlop, Giribet & Sutton, 2011