Chelicerata Heymons, 1901 Opiliones Sundevall, 1833 - harvestmen Phalangida Bristowe, 1949 Suborder Laniatores Thorell, 1876 - armored harvestmen Infraorder Insidiatores Loman, 1900 Superfamily Triaenonychoidea Sørensen, 1886 Family Triaenonychidae Sørensen, 1886