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Semicassis sp.

genus Semicassis Mörch, 1852

• Modern species: early Eocene - Present (48.6 - 0.0 Ma)
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Gastropoda, order Littorinimorpha, family Cassidae

• Distribution
• Pliocene: Niigata
• Pleistocene: Ishikawa, Chiba