| 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 |
|
Wyoming |
Penny,J.S. Late Cretaceous and Early Tertiary palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Early Eocene |
|
Wyoming |
Nichols,D.J. Palynology of the Vermillion Creek Coal Bed and associated strata. (In: Geological Investigations of the Vermillion Creek Coal Bed in the Eocene Niland Tongue of the Wasatch Formation, Sweetwater County, Wyoming. H.W. Roehler and P.L. Martin, editors) |
1987 |