| details |
Late Miocene |
|
Washington |
Ballog,R.A. et al. Palynology of the Montesano Formation (Upper Miocene) of Western Washington. |
1972 |
| details |
Paleocene |
Early Eocene |
Washington |
Griggs,P.H. Stratigraphic significance of fossil pollen and spores of the Chuckanut Formation, northwest Washington. |
1965 |
| details |
Late Miocene |
Pliocene |
Washington |
Wolfe,J.A. Paleoclimatic significance of the Oligocene and Neogene floras of the Northwestern United States. |
1981 |
| details |
Lutetian |
|
Wyoming |
Leopold,E.B. Pollen and spores of the Kisinger Lakes fossil Leaf locality. (In: An Early Middle Eocene flora from the Yellowstone-Absaroka Volcanic Province Northwestern Wind River Basin, Wyoming. H.D. MacGinitie et al) |
1974 |
| details |
Cretaceous |
|
Wyoming |
Tschudy,R.H. et al. Plant microfossils from the Lakota Formation. |
1966 |
| details |
Cretaceous |
|
Wyoming |
Tschudy,R.H. et al. Plant microfossils from the Lakota Formation. |
1966 |
| details |
Cretaceous |
|
Wyoming |
Tschudy,R.H. et al. Plant microfossils from the Lakota Formation. |
1966 |
| details |
Cretaceous |
|
Wyoming |
Tschudy,R.H. et al. Plant microfossils from the Lakota Formation. |
1966 |
| details |
Eocene |
|
Wyoming |
Cushman,R.A.Jr Vegetational history and climatic transition in an Eocene Intermontane Basin: Plant microfossil evidence from the Green River Formation, fossil basin, Wyoming. |
1999 |
| details |
Eocene |
|
Wyoming |
Cushman,R.A.Jr Vegetational history and climatic transition in an Eocene Intermontane Basin: Plant microfossil evidence from the Green River Formation, fossil basin, Wyoming. |
1999 |
| details |
Late Neogene |
|
Yugoslavia |
Pantic,N.K. et al. Supplement to the knowledge of the Pliocene flora of Macedonia. |
1956 |