| details |
Middle Eocene |
|
Wyoming |
Wodehouse,R.P. Tertiary pollen.1.Pollen of the living representatives of the Green River flora. |
1932 |
| details |
Middle Eocene |
|
Utah |
Wodehouse,R.P. Tertiary pollen.1.Pollen of the living representatives of the Green River flora. |
1932 |
| details |
Middle Eocene |
|
Colorado |
Wodehouse,R.P. Tertiary pollen.1.Pollen of the living representatives of the Green River flora. |
1932 |
| details |
Late Cretaceous |
Early Tertiary |
Colorado |
Tschudy,R.H. Palynomorphs as indicators of facies environments in Upper Cretaceous and Lower Tertiary strata, Colorado and Wyoming |
1961 |
| details |
Late Cretaceous |
Early Tertiary |
Wyoming |
Tschudy,R.H. Palynomorphs as indicators of facies environments in Upper Cretaceous and Lower Tertiary strata, Colorado and Wyoming |
1961 |
| details |
Maastrichtian |
|
Canada(Saskatchewan) |
Jarzen,D.M. Some Maastrichtian palynomorphs and their phytogeographical and paleoecological implications. |
1978 |