| original |
Middle Eocene |
|
Colorado |
Wodehouse,R.P. Tertiary pollen II. The oil shales of the Eocene Green River Formation |
1933 |
| original |
Middle Eocene |
|
Utah |
Wodehouse,R.P. Tertiary pollen II. The oil shales of the Eocene Green River Formation |
1933 |
| details |
Eocene |
|
Colorado |
Krutzsch,W. Atlas of Middle and Upper Tertiary dispersed spores and pollen as well as microplankton of northern Middle Europe 6. Coniferae pollen (Saccites and Inaperturates) |
1971 |
| details |
Early Miocene |
|
Poland |
Ziembinska-Tworzydlo,M. Palynological characteristics of the Neogene of Western Poland. |
1974 |
| details |
Lutetian |
|
California |
Frederiksen,N.O. et al. Middle Eocene palynomorphs from San Diego, California;Part I:Introduction, spores and Gymnosperm pollen. |
1983 |