| details |
Late Neogene |
|
Wyoming |
Love,J.D. Reconnaissance study of Quaternary Faults in and South of Yellowstone National Park, Wyoming |
1961 |
| details |
Middle Miocene |
|
Colorado |
Leopold,E.B. Late Cenozoic palynology. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Early Pliocene |
|
Wyoming |
Leopold,E.B. et al. Development and affinites of Tertiary floras in the Rocky Mountains |
1972 |
| details |
Middle Pliocene |
|
Wyoming |
Leopold,E.B. et al. Development and affinites of Tertiary floras in the Rocky Mountains |
1972 |
| details |
Barstovian |
|
Wyoming |
Montagne,J. Cenozoic history of the Saratoga Valley area, Wyoming and Colorado. |
1991 |
| details |
Pliocene |
Quaternary |
Utah |
Davis,O.K. Palynological evidence for vegetation cycles in a 1.5 million year pollen record from the Great Salt Lake, Utah, USA. |
1998 |
| details |
Quaternary |
|
Wyoming |
Santucci,V.L. The Yellowstone Paleontological Survey. |
1998 |