Abstract
The break up of Gondwana and the final separation of South America and Africa resulted in the formation of sedimentary basins along the coast of West Africa. These basins were infilled with Cretaceous and Tertiary sediments. The paleoflora (spores and pollen grains) of these sediments was studied as a follow-up to an earlier general study of the microfauna (Foraminifera and Ostracodes). It is interesting to note that the African intertropical microflora assemblages are significantly different from those of north African basins but bear close ressemblance to those of South America and to a lesser extent to those of India and Borneo. The literature on the palynology of Cretaceous-Tertiary sediments of West Africa, from English and French sources, has been reviewed and synthesized with a veiw to describe the paleofloral succession as defined by the appearance, predominance and disappearance of pollen species which correspond approximately with established stratigraphic subdivisions. A palynostratigraphic scale is proposed ranging from Neocomian to Pliocene, showing the marker-pollen and spore species for intertropical Africa. Some of these species also occur in virtually all the nowadays intertropical zone.
Published Version
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