Parent taxon: Myodocopina according to M. B. Forel 2022
See also Ferdinando 2001, Forel 2017 and Yamaguchi et al. 2016
Sister taxa: Cylindroleberidoidea, Cypridinacea, Cypridinoidea, Entomozoidea, Mesoleberis, Sarsielloidea
Subtaxa: Polycopidae Quasipolycopidae
Ecology: planktonic suspension feeder-detritivore
Distribution:
• Quaternary of Italy (1 collection)
• Miocene of Poland (1)
• Eocene of Tonga (1)
• Cretaceous of Hungary (1), North Atlantic (6)
• Jurassic of Algeria (1), Austria (7), France (8), Germany (56), Hungary (1), Portugal (29), the Russian Federation (4), Spain (19), the United Kingdom (9)
• Triassic of Austria (1), Canada (4: Yukon), China (9), Hungary (4), Iran (1), Italy (1), Romania (25), Türkiye (3)
• Permian of Australia (4), Azerbaijan (7), China (12), Greece (2), Hungary (5), Iran (3), Israel (2), Japan (1), Lithuania (11), the Russian Federation (2), Thailand (12), Türkiye (1)
• Carboniferous to Permian of Türkiye (1)
• Carboniferous of Hungary (1), Spain (1), United States (2: Kansas)
Total: 259 collections including 349 occurrences