| details |
Santonian |
|
Canada(NWT,Mackenzie) |
McIntyre,D.J. Palynology of an Upper Cretaceous section, Horton River, District of MacKenzie, N. W. T. |
1974 |
| details |
Late Campanian |
|
Colorado |
Newman,K.R. Biostratigraphic correlation of Cretaceous-Tertiary Boundary Rio Colorado to San Juan Basin, New Mexico. (In: The Cretaceous-Tertiary Boundary in the San Juan and Raton Basins, New Mexico and Colorado. J.E. Fassett and J.K.Rigby, editors) |
1987 |
| details |
Early Campanian |
|
Montana |
Payenberg,T.H.D. et al. Litho- and chronostratigraphic relationships of the Santonian - Campanian Milk River Formation in southern Alberta and Eagle Formation in Montana utilising stratigraphy, U-Pb geochronology, and palynology. |
2002 |