| details |
Maastrichtian |
Early Paleocene |
Wyoming |
Nichols,D.J. et al. Plant microfossil record of the terminal Cretaceous event in the Western United States and Canada. (In: Global catastrophes in earth history; An interdiciplinary conference on impacts, volcanism and mass mortality. V.L.Sharton et al, editors) |
1990 |
| details |
Late Cretaceous |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
Early Eocene |
|
Wyoming |
Shearer,J.C. et al. Delineation of distinctive nature of Tertiary coal beds. |
1995 |
| details |
Late Paleocene |
Early Eocene |
Wyoming |
Farley,M.B. Palynomorph concentration in studies of Paleogene nonmarine depositional environments of Wyoming. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |
| details |
Eocene |
|
Wyoming |
Santucci,V.L. The Yellowstone Paleontological Survey. |
1998 |