| original |
Early Cretaceous |
Cenomanian |
Ghana |
Chippetta,R. Palynologic correlation of two subsurface sections from Ghana, West Africa. |
1960 |
| original |
Middle Turonian |
Early Santonian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1967 |
| original |
Late Campanian |
Early Maastrichtian |
Utah |
Franczyk,K.J. et al. Sedimentology, mineralogy, palynology and depositional history of some Upper most Cretaceous and Lowermost Tertiary rocks along the Utah Book and Roan Cliffs East of the Green River. (In: Evolution of Sedimentary Basins. A.C.Hoffman, Project Coordinator) |
1990 |
| original |
Early Paleocene |
|
Colorado |
Kauffman,E.G. et al. The Cretaceous-Tertiary boundary interval at South Table Mountain, near Golden, Colorado. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) |
1990 |