| original |
Early Cretaceous |
|
Wyoming |
Davis,P.N. Palynology and stratigraphy of the Lower Cretaceous rocks of northern Wyoming |
1963 |
| original |
Middle Albian |
|
Canada(Alberta) |
Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. |
1964 |
| original |
Middle Turonian |
Early Santonian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1967 |
| original |
Early Albian |
Middle Albian |
Canada(Alberta) |
Vagvolgyi,A.B. et al. Microflora of the Lower Cretaceous McMurray Formation, Northeast Alberta. |
1969 |