1. Radioactive age determination of glauconite from the type locality of the Ewekoro Formation;Adegoke,1972
2. Stratigraphy and palaeontology of the Ewekoro Formation (Palæocene) of southwestern Nigeria;Adegoke;Bulletin American Palæontologists,1977
3. Datation isotopique KAr d'un niveau de sable glauconieux à la limite Paléocène-Eocène dans le bassin côtier béninois (Afrique de l'Ouest);Akpiti;Journal African Earth Sciences,1985
4. Late Palæocene — Early Eocene benthonic foraminiferal biostratigraphy and palaeontology of Rockall Bank;Berggren;Micropalæontolgy,1974
5. Palaeocene benthonic foraminiferal biostratigraphy, palæobiogeography and palaeontology of Atlantic — Tethyan regions: Midway type fauna;Berggren;Palæogeography, Palæoclimatology, Palæoecology,1975