| details |
Oligocene |
|
Japan(Kyushu I.) |
Takahashi,K. Preliminary note on the problem of the Ootsuji and the Ashiya Stage of the Early Tertiary of Kyushu |
1960 |
| original |
Late Oligocene |
|
Japan(Kyushu I.) |
Takahashi,K. Pollen and spores of Western Japanese Lower Tertiary and Miocene. Part 1 |
1961 |
| original |
Early Tertiary |
Miocene |
Japan(Kyushu I.) |
Takahashi,K. Pollen and spores of Western Japanese Lower Tertiary and Miocene. Part 2 |
1961 |
| details |
Early Pliocene |
|
Japan(Fukuoka Pref.) |
Takahashi,K. Palynostratigraphic study of the coal-bearing formation in Iki Island. |
1988 |