| original |
Aptian |
Middle Albian |
Venezuela |
Sinanoglu,E. Early Cretaceous palynomorphs from the Zuata area, eastern Venezuela |
1983 |
| original |
Middle Turonian |
Santonian |
Utah |
Nichols,D.J. Palynostratigraphy in relation to sequence stratigraphy, Straight Cliffs Formation (Upper Cretaceous) Kaiparowits Plateau, Utah |
1995 |
| original |
Middle Cenomanian |
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 |