Chelicerata Heymons, 1901 †Eurypterida Burmeister, 1843 - eurypterids †Stylonurina Diener, 1924 Superfamily †Mycteropoidea Cope, 1886 Family †Mycteropidae Cope, 1886 1 Genus †Megarachne Hünicken, 1980 2 Genus †Mycterops Cope, 1886 3 Genus †Woodwardopterus Kjellesvig-Waering, 1959