| original |
Late Cretaceous |
|
South Dakota |
Stanley,E.A. Upper Cretaceous and Paleocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from northwestern South Dakota. |
1965 |
| details |
Late Cretaceous |
|
South Dakota |
Srivastava,S.K. Upper Cretaceous palynology-A review |
1967 |
| details |
Late Paleocene |
|
New Mexico |
Kedves,M. et al. About paleophytogeographic regions of the Cretaceous and of the Paleogene, according to palynologic data. |
1968 |
| details |
Maastrichtian |
|
New Mexico |
Kedves,M. et al. About paleophytogeographic regions of the Cretaceous and of the Paleogene, according to palynologic data. |
1968 |
| details |
Maastrichtian |
|
Montana |
Tschudy,R.H. Palynology of the Cretaceous-Tertiary boundary in the northern Rocky Mountain and Mississippi Embayment Regions. (In: Symposium on Palynology of the Late Cretaceous and Early Tertiary. R.M Kosanke and A.T. Cross, editors) |
1970 |
| details |
Late Eocene |
Oligocene |
Canada(NWT) |
Norris,G. Palynostratigraphic study. (In: Stratigraphic correlation biostratigraphic zonation;Imp.Ivik K-54, 69'''33'36'' N.Lat,134'''29'01''W.Gon, NWT. L.W.Cummings, editor) |
1977 |