| details |
Danian |
|
Japan(Hokkaido I.) |
Takahashi,K. Palynologic study of the Akkeshi and Tokotan Formations of the Nemuro Group, Eastern Hokkaido |
1991 |
| original |
Maastrichtian |
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 |
| details |
Late Maastrichtian |
Early Danian |
Japan(Hokkaido I.) |
Takahashi,K. et al. Palynologic study of Kawaruppu K/T Boundary samples in eastern Hokkaido |
1992 |