Euchelicerata - Eurypterida - Adelophthalmidae
Parent taxon: Adelophthalmoidea according to J. C. Lamsdell et al. 2013
See also Brauckmann et al. 2003, Dunlop et al. 2013, Dunlop et al. 2020 and Tetlie and Dunlop 2005
Sister taxa: none
Subtaxa: Adelophthalmus Bassipterus Eysyslopterus Nanahughmilleria Parahughmilleria Pittsfordipterus Pruemopterus
Type: Eurypterus (Adelophthalmus)
Ecology: nektobenthic carnivore
Distribution:
• Permian of United States (3: Kansas, Oklahoma, Pennsylvania collections)
• Virgilian of United States (1: New Mexico)
• Desmoinesian of United States (2: Pennsylvania)
• Westphalian of Canada (1: Nova Scotia), Germany (1), the United Kingdom (2), United States (1: Illinois)
• Carboniferous to Permian of China (1)
• Carboniferous of Belgium (6), Canada (1: New Brunswick), the Czech Republic (3), France (3), Germany (2), Italy (1), the Netherlands (2), Portugal (1), the Russian Federation (2), Spain (2), Ukraine (2), the United Kingdom (4), United States (4: Kansas, Nebraska, New Mexico, Pennsylvania)
• Devonian of Australia (1), Belgium (1), Germany (3), the Russian Federation (7), the United Kingdom (1), United States (2: Pennsylvania, Pennsylvania )
• Silurian of Estonia (1), Norway (4), the United Kingdom (6), United States (9: Maryland, New York, Pennsylvania, West Virginia)
Total: 80 collections including 92 occurrences