Reference

Holger Gebhardt, Olabisi Adeleye Adekeye, Samuel Olusegun Akande (2010): Late Paleocene to Initial Eocene Thermal Maximum (IETM) Foraminiferal Biostratigraphy and Paleoecology of the Dahomey Basin, Southwestern Nigeria – Jahrbuch der Geologischen Bundesanstalt – 150: 407 - 419.