| link
|
From
|
To
|
Geolocation
|
Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Eocene | Japan(Hokkaido I.) | Tokunaga,S. Fossil pollen and spore from the known coal seams in the Bibai area, Ishikari Coal Field, Hokkaido. | 1955 | |
| details | Early Tertiary | Japan(Hokkaido I.) | Tokunaga,S. Pollen analysis of the known coal seams in the Biba Bibai area, Sorachi District, Ishikari Coal Fields, Hokkaido. | 1955 |