Chelicerata Heymons, 1901 Opiliones Sundevall, 1833 - harvestmen Phalangida Bristowe, 1949 1 Family †Archaeometidae Petrunkevitch, 1949 [monotypic] 2 Suborder Eupnoi Hansen & Sørensen, 1904 - daddy longlegs 3 Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen 4 Suborder Laniatores Thorell, 1876 - armored harvestmen