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Geolocation
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Author - title
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Year
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| details | Early Miocene | Pliocene | Japan(Sea of Japan) | Takahashi,K. Neogene pollen assemblages and zonation of Japan. | 1984 |
| original | Early Eocene | Japan(Kyushu I.) | Takahashi,K. Pollen and spores of Western Japanese Lower Tertiary and Miocene. Part 1 | 1961 | |
| details | Danian | Japan(Hokkaido I.) | Takahashi,K. Palynostratigraphic study of the Kiritappu Formation at Kiritappu and in Yururi Island, eastern Hokkaido | 1991 |