| details |
Eocene |
|
Japan(Hokkaido I.) |
Okazaki,Y. Palynological and stratigraphical studies on the Paleogene Coals in the Kushiro Coal Field, eastern Hokkaido.Geology of the Bepo Formation and its pollen analysis. Part 1. |
1957 |
| details |
Late Neogene |
|
Japan(Hokkaido I.) |
Okazaki,Y. Stratigraphical and palynological studies of the Honbetsu Group and the Ikeda Formation (Pliocene, Tertiary) in eastern Hokkaio. |
1958 |
| details |
Early Miocene |
|
Alaska |
Foster,H.L. et al. Fossil pollen from nonmarine sedimentary rocks of the eastern Yukon-Tanana Region, East-Central Alaska. (In: Geologic studies in Alaska by the U.S. Geological Survey,1989) |
1990 |
| details |
Tertiary |
|
Alaska |
Foster,H.L. et al. Fossil pollen from nonmarine sedimentary rocks of the eastern Yukon-Tanana Region, East-Central Alaska. (In: Geologic studies in Alaska by the U.S. Geological Survey,1989) |
1990 |