Wikipedia
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