| details |
Late Miocene |
|
Wyoming |
Barnosky,C.W. Late Miocene vegetational and climatic variations Inferred from a pollen record in Northwest Wyoming |
1984 |
| 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 |
Middle Eocene |
|
Wyoming |
Bradley,W.H. Geology of the Green River Formation and associate Eocene rocks in Southwestern Wyoming and adjacent parts of Colorado and Utah. |
1964 |
| details |
Early Eocene |
Middle Eocene |
Wyoming |
Fisk,L.H. et al. Plant microfossils from the Yellowstone Fossil Forests: Preliminary report. |
1974 |
| details |
Paleocene |
|
Wyoming |
Flores,R.M. Geological and geomorphic controls of Coal development in some Tertiary Rocky Mountain Basins, USA |
1993 |
| details |
Pannonian |
|
Yugoslavia |
Budnar-Tregubov,A. Micropaleobotanical research of the coals from Locevje and Kanizarnica in Slovenia. |
1961 |
| 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 |
Late Neogene |
|
Yugoslavia |
Pantic,N.K. et al. Supplement to the knowledge of the Pliocene flora of Macedonia. |
1956 |