| details |
Early Tertiary |
|
Japan(Hokkaido I.) |
Tokunaga,S. Pollen analyses of some coal seams in the Akabira area, Ishikari Coal Field, Hokkaido |
1956 |
| details |
Miocene |
|
Japan(Yamagata Pref.) |
Takahashi,N. Pollen analysis at the Nishitagawa Coal Field. |
1956 |
| details |
Late Neogene |
|
Japan(Miyagi Pref.) |
Jimbo,T. Palynology in Japan. |
1953 |
| details |
Oligocene |
|
Vermont |
Traverse,A. et al. Micropaleontology of the Brandon Lignite, an Early Tertiary Coal in Central Vermont |
1953 |
| details |
Late Neogene |
|
Japan(Shikoku I.) |
Nakamura,J. Pollenanalyses from two Pliocene Beds in Shikoku. |
1952 |
| details |
Early Pliocene |
Middle Pliocene |
Japan(Shikoku I.) |
Nakamura,J. Fossil pollen in the Nahari Lignite. |
1951 |
| details |
Miocene |
|
Germany(Rhineland) |
Thomson,P.W. The origin of the Coal Seams based on micropaleontological investigations of the main Seam of the Brown Coal of the Rhine. |
1950 |
| details |
Tertiary |
|
USA |
Wilson,L.R. Spores and pollen as microfossils. |
1944 |
| details |
Eocene |
|
Colorado |
Wilson,L.R. Spores and pollen as microfossils. |
1944 |