| details |
Late Oligocene |
Early Miocene |
Nigeria |
Takahashi,K. et al. Palynology of Middle Tertiary lacustrine deposits from the Jos Plateau, Nigeria. |
1989 |
| details |
Danian |
|
Japan(Hokkaido I.) |
Takahashi,K. Palynologic study of the Akkeshi and Tokotan Formations of the Nemuro Group, Eastern Hokkaido |
1991 |
| details |
Danian |
|
Japan(Hokkaido I.) |
Takahashi,K. Palynostratigraphic study of the Kiritappu Formation at Kiritappu and in Yururi Island, eastern Hokkaido |
1991 |
| details |
Maastrichtian |
|
Japan(Hokkaido I.) |
Takahashi,K. Palynomorph assemblage of the Tokotan Formation at Konbumori, Nemuro City, Eastern Hokkaido. |
1991 |