| original |
Maastrichtian |
|
Japan(Hokkaido I.) |
Takahashi,K. Spores and pollen of the Upper Cretaceous Hakobuchi Beds, Hokkaido. |
1964 |
| details |
Maastrichtian |
|
Japan(Hokkaido I.) |
Takahashi,K. Spore and pollen assemblages of the Upper Cretaceous Hakobuchi Group in Hokkaido, Japan. |
1965 |
| details |
Maastrichtian |
|
Japan(Hokkaido I.) |
Takahashi,K. Upper Cretaceous and Lower Paleogene microfloras of Japan. |
1967 |
| details |
Late Cretaceous |
|
Japan(Hokkaido I.) |
Takahashi,K. Some Cretaceous palynomorphs from the Upper Cretaceous sediments of Hokkaido. |
1970 |