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Macoma sp.
genus Macoma Leach, 1819
- Modern species: Eocene - Present (55.8 - 0.0 Ma)
- Habitat: Marine
- Classification
- kingdom Animalia, phylum Mollusca, class Bivalvia, family Tellinidae
- Distribution
- Paleogene-Neogene: Nagano
- Eocene: Ehime
- Oligocene: Hokkaido, Nagano
- Oligocene-Miocene: Nagano
- Miocene: Hokkaido, Akita, Miyagi, Nagano, Fukui, Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Kanagawa, Shizuoka, Aichi, Gifu, Mie, Nara, Hiroshima, Tottori, Shimane
- Miocene-Pliocene: Fukushima, Nagano
- Pliocene: Hokkaido, Aomori, Miyagi, Niigata, Ibaraki, Shizuoka
- Pliocene-Pleistocene: Hokkaido, Niigata, Nagano, Saitama, Kanagawa
- Quaternary: Hiroshima
- Pleistocene: Hokkaido, Aomori, Nagano, Ishikawa, Ibaraki, Tokyo, Chiba, Kanagawa, Shizuoka, Aichi
- Holocene: Saitama, Aichi, Hiroshima
- Investigation in progress: Saitama (Miocene?)