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Periploma sp.

genus Periploma Schumacher, 1817

• Modern species: Early Cretaceous - Present (112.6 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, family Periplomatidae

• Distribution
• Oligocene: Fukushima
• Miocene: Nagano, Aichi, Mie
• Pliocene: Niigata
• Pleistocene: Tokyo

• Subtaxa
• P. besshoense
• P. mitsuganoense
• P. yokoyamai