Family Isonychiidae Burks 1953 (mayfly)

Insecta - Ephemeroptera - Isonychiidae

Alternative spellings: Isonychiinae, Isonychiinae

Full reference: B. D. Burks. 1953. The mayflies, or Ephemeroptera, of Illinois. Bulletin of the Illinois Natural History Survey 26:1-216

Parent taxon: Eusetisura according to N. J. Kluge 2004

See also Burks 1953, Demoulin 1968 and Lewis 1977

Sister taxa: Coloburiscidae, Oligoneuriidae

Subtaxa: Fujiwaranychia Isonychia

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Ecology:

Distribution:

• Oligocene of United States (2: Montana collections)

• Cretaceous of Myanmar (1)

Total: 3 collections each including a single occurrence

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