| details |
Coniacian |
Santonian |
Utah |
Nichols,D.J. Palynology and ages of some Upper Cretaceous formations in the Markagunt and Northwestern Kaiparowits Plateaus, southwestern Utah. (In: Geologic studies in the Basin and range-Colorado Plateau transition in Southeastern Nevada, Southwestern Utah and Northwestern Arizona, 1995) |
1997 |
| details |
Paleocene |
|
North Dakota |
Kroeger,T.J. et al. Paleoenvironmental distribution of Paleocene palynomorph assemblages from brachish water deposits in the Ludlow, Slope and Cannonball Formations, southwestern North Dakota. |
1997 |
| details |
Bartonian |
|
Texas |
Elsik,W.C. et al. Palynomorph biozones in the context of changing paleoclimate, Middle Eocene to Lower Oligocene of the northwest Gulf of Mexico. |
2000 |