†superfamily Stylonuroidea Diener 1924 (eurypterid)
Parent taxon: Stylonurina according to J. A. Dunlop et al. 2013
See also Dunlop et al. 2020 and Lamsdell et al. 2010
Sister taxa: Kokomopteroidea, Mycteropoidea, Rhenopteroidea, Stylonuroides
Subtaxa: Dolichopteridae Parastylonuridae Stylonuridae
Type: Stylonurus
Ecology: nektobenthic carnivore
Distribution:
• Devonian of Belarus (1 collection), Canada (2: Nunavat, Quebec), France (1), the Russian Federation (1), the United Kingdom (2), United States (3: Ohio, Pennsylvania)
• Silurian of Norway (2), Sweden (1), the United Kingdom (7), United States (9: Maryland, New York, Pennsylvania)
Total: 29 collections including 43 occurrences