| details |
Cenomanian |
Coniacian |
Wyoming |
Griggs,P.H. Stratigraphy and palynology of the Frontier Formation, Big Horn Basin, Wyoming |
1970 |
| details |
Late Campanian |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
Paleocene |
|
South Dakota |
Davies,E.H. The Anemiacean, Schizaeacean and related spores. An index to genera and species. |
1985 |
| original |
Paleocene |
|
South Dakota |
Stanley,E.A. Upper Cretaceous and Paleocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from northwestern South Dakota. |
1965 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Late Paleocene |
|
Canada(NWT,Franklin) |
McIntyre,D.J. Paleocene palynoflora from northern Somerset Island, District of Franklin, NWT. |
1989 |