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Ephemeroptera fam., gen. et sp. indet., Mayfly (Mayflies)

order Ephemeroptera Hyatt and Arms, 1891

• Modern species

• Classification
• kingdom Animalia, phylum Arthropoda, class Insecta

• Distribution
• Cretaceous: Yamaguchi
• Miocene: Yamagata, Fukui
• Pliocene: Hyogo
• Pleistocene: Tochigi

• Subtaxa
• Baetis, genus
• Heptageniidae, family