| details |
Early Cretaceous |
|
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| details |
Cenomanian |
|
Minnesota |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| details |
Middle Albian |
Late Albian |
Portugal |
Berthou,P.Y. et al. The contribution of palynology to the stratigraphy of the Middle to Late Cretaceous West Portugal Basin. |
1981 |
| details |
Late Albian |
|
Portugal |
Berthou,P.Y. et al. The contribution of palynology to the stratigraphy of the Middle to Late Cretaceous West Portugal Basin. |
1981 |