Chelicerata Heymons, 1901
†Eurypterida Burmeister, 1843 - eurypterids
†Stylonurina Diener, 1924
Superfamily †Mycteropoidea Cope, 1886
Family †Hibbertopteridae Kjellesvig-Waering, 1959
1 Genus †Campylocephalus Eichwald, 1860
2 Genus †Cyrtoctenus Størmer & Waterston, 1968
3 Genus †Dunsopterus Waterston, 1968
4 Genus †Hastimima White, 1908
5 Genus †Hibbertopterus Kjellesvig-Waering, 1959
6 Genus †Vernonopterus Waterston, 1968