Chelicerata Heymons, 1901 †Eurypterida Burmeister, 1843 - eurypterids †Stylonurina Diener, 1924 Superfamily †Kokomopteroidea Kjellesvig-Waering, 1966 Family †Kokomopteridae Kjellesvig-Waering, 1966 1 Genus †Kokomopterus Kjellesvig-Waering, 1966 2 Genus †Lamontopterus Waterson, 1979