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Umbonium akitanum

Umbonium akitanum (Suzuki)

Invalid synonym: Suchium akitanum, Umbonium (Suchium) akitanum

• Extinct species
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Gastropoda, family Trochidae, genus Umbonium

• Distribution
• Miocene-Pliocene: Hokkaido
• Pliocene: Niigata
• Pleistocene: Ishikawa