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Cephalopoda, Cephalopod(s)
class Cephalopoda Cuvier, 1797
- Modern species
- Habitat: Marine
- Classification
- kingdom Animalia, phylum Mollusca
- Distribution
- Silurian: Fukui, Gifu
- Devonian: Gifu
- Carboniferous: Okayama, Yamaguchi
- Carboniferous-Permian: Niigata, Yamaguchi
- Permian: Iwate, Miyagi, Fukushima, Gifu, Hiroshima, Yamaguchi
- Mesozoic: Mie
- Triassic: Iwate, Miyagi, Fukui, Tokyo, Kyoto, Okayama, Ehime
- Jurassic: Miyagi, Fukushima, Niigata, Nagano, Toyama, Fukui, Tochigi, Ibaraki, Aichi, Gifu, Mie
- Jurassic-Cretaceous: Nagano, Gifu
- Cretaceous: Hokkaido, Iwate, Miyagi, Fukushima, Nagano, Gunma, Ibaraki, Saitama, Tokyo, Chiba, Hyogo, Osaka, Wakayama, Kagawa, Tokushima, Ehime
- Cretaceous-Paleogene: Shizuoka
- Paleogene: Oita
- Eocene: Saga, Nagasaki
- Eocene-Oligocene: Fukuoka
- Oligocene: Fukuoka, Saga
- Miocene: Niigata, Nagano, Toyama, Fukui, Tochigi, Saitama, Kanagawa, Aichi, Gifu, Shimane, Yamaguchi, Oita
- Pliocene: Chiba