| details |
Late Paleocene |
|
Wyoming |
Pocknall,D.T. Composition of plant communities in and near Late Paleocene Coal swamps, Fort Union Formation, Powder River System, Wyoming-Montana. |
1986 |
| details |
Early Tertiary |
|
Wyoming |
Farley,M.B. et al. Palynomorph concentration as an indicator of depositional environment |
1988 |
| details |
Late Neogene |
|
Wyoming |
Love,J.D. Reconnaissance study of Quaternary Faults in and South of Yellowstone National Park, Wyoming |
1961 |
| details |
Maastrichtian |
Paleocene |
Wyoming |
Leffingwell,H.A. Palynology of the Lance (Upper Cretaceous) and Fort Union (Paleocene) Formations of the type Lance area, Wyoming. (In: Symposium on Palynology of the Late Cretaceous and Early Tertiary. R.M Kosanke and A.T. Cross, editors) |
1970 |
| details |
Early Eocene |
Middle Eocene |
Wyoming |
Fisk,L.H. et al. Plant microfossils from the Yellowstone Fossil Forests: Preliminary report. |
1974 |
| details |
Paleocene |
Eocene |
Wyoming |
Tschudy,R.H. Pollen changes near the Fort Union-Wasatch boundary, Powder River Basin. |
1976 |
| details |
Late Paleocene |
Early Eocene |
Wyoming |
Wing,S.L. A new basis for recognizing the Paleocene/Eocene boundary in Western Interior North America. |
1984 |
| details |
Early Pliocene |
|
Yugoslavia |
Pantic,N.K. et al. The Lower Pliocene swamp vegetation of the Kolubara Bay and the genesis of the Coal Seam. |
1967 |
| details |
Early Pliocene |
|
Yugoslavia |
Ercegovac,M. Palynologic and petrologic characteristics and the genesis of Coal in the Kreka Basin. |
1970 |