| 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 |
Maastrichtian |
Paleocene |
Canada(NWT,Franklin) |
Hills,L.V. et al. Paraalnipollenites, a new form genus from Uppermost Cretaceous and Paleocene rocks of Arctic Canada and Russia. |
1969 |
| details |
Late Cretaceous |
|
South Dakota |
Davies,E.H. The Anemiacean, Schizaeacean and related spores. An index to genera and species. |
1985 |