Stylonurina

The Stylonurina were a group of large eurypterids living from the Late Ordovician to the Late Permian periods. The suborder contains the following families (and one genus incertae sedis): * Rhenopteridae Størmer, 1951 * Stylonuridae Diener, 1924 * Parastylonuridae Waterston, 1979 * Kokomopteridae Kjellesvig-Waering, 1966 * Hardieopteridae Tollerton, 1989 * Drepanopteridae Kjellesvig-Waering, 1966 * Hibbertopteridae Kjellesvig-Waering, 1959 * Mycteropidae Cope, 1886 * Stylonuroides Kjellesvig-Waering, 1966

Stylonurina

The Stylonurina were a group of large eurypterids living from the Late Ordovician to the Late Permian periods. The suborder contains the following families (and one genus incertae sedis): * Rhenopteridae Størmer, 1951 * Stylonuridae Diener, 1924 * Parastylonuridae Waterston, 1979 * Kokomopteridae Kjellesvig-Waering, 1966 * Hardieopteridae Tollerton, 1989 * Drepanopteridae Kjellesvig-Waering, 1966 * Hibbertopteridae Kjellesvig-Waering, 1959 * Mycteropidae Cope, 1886 * Stylonuroides Kjellesvig-Waering, 1966