| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |
| original |
Senonian |
Paleocene |
Nigeria |
Puri,G.S. Some plant microfossils from the Cretaceous and Paleocene of Nigeria |
1963 |
| details |
Middle Campanian |
Late Campanian |
Colorado |
Gies,T.F. Palynology of sediments boardering some Upper Cretaceous strand lines in Northwestern Colorado. |
1972 |
| details |
Santonian |
Campanian |
Wyoming |
Guennel,G.K. et al. Palynology of the Hoback Basin |
1973 |
| details |
Cenomanian |
|
Minnesota |
Kalgutkar,R.M. et al. Synopsis of fossil fungal spores, mycella and fructifications. |
2000 |