Chelicerata Heymons, 1901 Opiliones Sundevall, 1833 - harvestmen 1 Suborder Cyphophthalmi Simon, 1879 - mite harvestmen 2 Suborder †Tetrophthalmi Garwood, Sharma, Dunlop & Giribet, 2014 3 Phalangida Bristowe, 1949 4 Genus †Arachnometa Petrunkevitch, 1949, incertae sedis