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Unionidae gen. et sp. indet., Unionid(s)

family Unionidae Rafinesque, 1820

• Modern species
• Habitat: Freshwater

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, order Unionida

• Distribution
• Jurassic-Cretaceous: Ishikawa
• Eocene: Hokkaido
• Miocene: Saitama, Mie, Shimane
• Miocene-Pliocene: Nagano
• Pliocene: Mie, Shiga, Ehime
• Pliocene-Pleistocene: Mie
• Quaternary: Hiroshima
• Pleistocene: Hokkaido, Niigata, Ishikawa, Ibaraki, Shiga, Yamaguchi
• Investigation in progress: Mie

• Subtaxa
• Anodonta, genus
• Cristaria, genus
• Cuneopsis, genus
• Hyriopsis, genus
• Inversidens, genus
• Inversiunio reinianus
• Lamprotula, genus
• Lancelaria, genus
• Nodularia douglasiae ssp. biwae
• Sinanodonta, genus
• Unio, genus