| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |
| details |
Campanian |
|
Oklahoma |
Morgan,R. Palynology of the Ozan Formation (Cretaceous) Mccurtin County, Oklahoma |
1967 |
| details |
Late Cretaceous |
|
Wyoming |
Stone,J.F. Palynology of the Almond Formation, (Upper Cretaceous), Rock Springs Uplift, Wyoming. |
1973 |
| details |
Late Albian |
Cenomanian |
Greenland |
Koppelhus,E.B. et al. A palynological and sedimentological study of Cretaceous floodplain deposits of the Atane Formation at Skansen and Igdlunguaq, Disko, West Greenland. |
1993 |