| original |
Early Cretaceous |
Cenomanian |
Ghana |
Chippetta,R. Palynologic correlation of two subsurface sections from Ghana, West Africa. |
1960 |
| original |
Oligocene |
|
Ghana |
Chippetta,R. Palynologic correlation of two subsurface sections from Ghana, West Africa. |
1960 |
| original |
Campanian |
Maestrichtian |
Argentina(Chubut) |
Papк,O.H. et al. Masulas of Salviniaceae of the Cretaceous of northern Patagonia and Mendova, Argentina. The importance of biostratigraphy and palaeoenvironment. |
1988 |
| original |
Late Cretaceous |
|
Argentina(Chubut) |
Papк,O.H. Palynology of Paso del Sapo Formation, (Upper Cretaceous), Middle Valley of Chubut River, Argentina. Pollen grains, statistics, paleoecology, and paleoenvironment. |
1989 |