| details |
Late Cretaceous |
|
Iowa |
Schemel,M.P. Cretaceous plant microfossils from Iowa |
1950 |
| details |
Late Cretaceous |
|
Iowa |
Schemel,M.P. Cretaceous plant microfossils from Iowa |
1950 |
| details |
Late Cretaceous |
|
Iowa |
Schemel,M.P. Cretaceous plant microfossils from Iowa |
1950 |
| details |
Early Mississippian |
|
Ohio |
Winslow,M.R. Plant spores and other microfossils from Upper Devonian and Lower Mississippian rocks of Ohio |
1962 |
| original |
Cenomanian |
|
Iowa |
Hall,J.W. Megaspores and other fossils in the Dakota Formation, (Cenomanian), of Iowa, USA. |
1963 |
| details |
Paleocene |
|
Wyoming |
Tschudy,R.H. et al. Plant microfossils from the Fort Union Formation. |
1966 |
| original |
Maastrichtian |
|
Senegal |
Kieser,G. Some particular palynological aspects of the Upper Cretaceous of Senegal |
1967 |
| details |
Maastrichtian |
|
Senegal |
Keiser,G. Some detailed palynological aspects of the Upper Cretaceous of Senegal. |
1967 |
| details |
Cenomanian |
|
Minnesota |
Hall,J.W. et al. Megaspore assemblages in the Cretaceous of Minnesota. |
1968 |
| details |
Late Cretaceous |
|
Wyoming |
Stone,J.F. Palynology of the Almond Formation, (Upper Cretaceous), Rock Springs Uplift, Wyoming. |
1973 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Oligocene |
|
Canada(NWT,Franklin) |
Brideaux,W.W. et al. Biostratigraphic determinations of fossils from the subsurface of the Districts of Franklin and MacKenzie. |
1975 |
| details |
Oligocene |
|
Canada(NWT,Mackenzie) |
Brideaux,W.W. et al. Biostratigraphic determinations of fossils from the subsurface of the Districts of Franklin and MacKenzie. |
1975 |
| details |
Late Cretaceous |
|
Wyoming |
Meyers,W.C. Environmental analysis of Almond Formation (Upper Cretaceous), from Rock Springs Uplift, Wyoming. |
1977 |
| details |
Maastrichtian |
|
Canada(Alberta) |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Middle Albian |
Turonian |
Canada(Arctic) |
Sweet,A.R. Jurassic and Cretaceous megaspores. |
1979 |
| details |
Late Cretaceous |
|
Canada(Arctic) |
Sweet,A.R. Jurassic and Cretaceous megaspores. |
1979 |