Superfamily Prosopistomatoidea Lameere 1917 (mayfly)
Parent taxon: Posteritorna according to Q. Q. Lin et al. 2017
See also McCafferty and Edmunds 1979
Sister taxa: none
Subtaxa: Baetiscidae Cretomitarcyidae Prosopistomatidae
Ecology:
Distribution:
• Eocene of the Russian Federation (3 collections)
• Cretaceous of Australia (1), Brazil (2), Myanmar (1), United States (1: New Jersey)
Total: 8 collections including 9 occurrences