| details |
Middle Campanian |
Late Campanian |
Colorado |
Gies,T.F. Palynology of sediments boardering some Upper Cretaceous strand lines in Northwestern Colorado. |
1972 |
| details |
Middle Campanian |
Late Campanian |
Canada(Saskatchewan) |
Eberth,D.A. et al. Stratigraphy, sedimentology and vertebrate paleontology of the Judith River Formation (Campanian) near Muddy Lake, westcentral Saskatchewan. |
1990 |
| details |
Late Santonian |
Early Campanian |
Canada(Alberta) |
Braman,D.R. Terrestrial palynomorphs of the Upper Santonian - ?Lower Campanian Milk River Formation, southern Alberta, Canada. |
2001 |