†family Hughmilleriidae Kjellesvig-Waering 1951 (eurypterid)
Parent taxon: Pterygotoidea according to J. C. Lamsdell 2025
See also Braddy et al. 2002, Dunlop et al. 2020, Størmer 1955 and Tetlie et al. 2007
Sister taxa: Ciurcopteridae, Herefordopteridae, Hunanopteridae, Pterygotidae, Slimoniidae
Subtaxa: Hughmilleria
Type: Hughmilleria
Ecology: nektobenthic carnivore
Distribution:
• Devonian of the Russian Federation (2 collections)
• Silurian of China (3), the United Kingdom (5), United States (8: New York, Pennsylvania, West Virginia), Vietnam (2)
Total: 20 collections including 23 occurrences