Order Opiliones Sundevall, 1833 - harvestmen Phalangida Bristowe, 1949 Palpatores Thorell, 1876 Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen Superfamily Ischyropsalidoidea Simon, 1879 Family Ischyropsalididae Simon, 1879