| details |
Late Oligocene |
Early Miocene |
Nigeria |
Takahashi,K. et al. Palynology of Middle Tertiary lacustrine deposits from the Jos Plateau, Nigeria. |
1989 |
| details |
Late Eocene |
Oligocene |
Sudan |
Kaska,H.V. A spore and pollen zonation of Early Cretaceous to Tertiary nonmarine sediments of central Sudan. |
1989 |
| details |
Late Miocene |
|
Niger |
Oboh,F.E. et al. Lithostratigraphical and palynostraigraphical studies of Igbomotoru -1 Well, Niger Delta. |
1989 |
| details |
Late Oligocene |
|
Benin |
Oyede,M. et al. Dating of the so called "Oligocene" Unconformity in the onshore part of the coastal sedimentary Basin of Benin (West Africa). |
1992 |
| details |
Late Neogene |
|
Cameroon |
Salard-Cheboldaeff,M. et al. Tertiary paleoflore of the Anloua Basin of the Adamaoua Plateau, Cameroon |
1992 |
| details |
Late Miocene |
|
Niger |
Oboh,F.E. et al. Palynological interpretation of the palaeoenvironments of Miocene strata of the Well Igbomotoru-1, Niger Delta. |
1992 |
| details |
Late Eocene |
Miocene |
Niger |
Lang,J. et al. The Continental terminal in West Africa |
1990 |