Insecta - Ephemeroptera - Heptageniidae
Full reference: J. G. Needham. 1901. Ephemeridae. Aquatic Insects in the Adirondacks. New York State Museum Buletin 47:418-429
Parent taxon: Heptagennota according to N. J. Kluge 2004
See also Carpenter 1992, McCafferty and Edmunds 1979 and Zhang 1989
Sister taxa: none
Subtaxa: Amerogenia Cruscolli Ecdyonurinae Electrogenia Heptageniinae Miocoenogenia Pseudokageronia Rhithrogeninae Succinogenia
Ecology:
Distribution:
• Miocene of China (4 collections), France (1), Mexico (1), the Russian Federation (1)
• Eocene of Denmark (1), Poland (1), the Russian Federation (8)
• Cretaceous of Canada (2: Alberta, Newfoundland and Labrador), Myanmar (1), United States (1: New Jersey)
Total: 21 collections including 29 occurrences