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Macoma optiva

Macoma optiva (Yokoyama)

• Extinct species
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, family Tellinidae, genus Macoma

• Distribution
• Paleogene-Neogene: Nagano
• Oligocene- Miocene: Nagano
• Miocene: Miyagi, Tochigi, Ibaraki, Saitama, Shizuoka, Gifu, Nara, Shimane
• Pleistocene: Tokyo
• Investigation in progress: Saitama (Miocene?)