The Paleocene – Early Eocene Foraminiferal Biostratigraphy of Eastern Dahomey Basin,SW Nigeria

Abstract

The foraminiferal biostratigraphy of the Paleocene – early Eocene strata of SW Nigeria which represents the eastern Dahomey basin has been studied from four boreholes and two outcrops. A fairly diverse planktic and benthic foraminiferal assemblage was recovered.Six planktic biozones comprising Praemurica pseudobulloides, P. inconstans, Morozovella angulata, Globanomalina pseudomenardii, Morozovella velascoensis and M. subbotinae were identified. Two benthic concurrent range zones, Anomalinoides uboniferus – Anomalinoides midwayensis and Planulina oyae and Uvigerina hourcqi have been identified. These biozones will serve as useful correlation tools in the West African coastal and inland sedimentary basins.