Peter A. Adeonipekuna,^1,*,** M. Adebisi Sowunmi,^2,*** Keith Richards<sup>3,4,****

1</sup>aLaboratory of Palaeobotany and Palynology, Department of Botany, Faculty of Science, University of
²bDepartment of Archaeology and Anthropology, University of Ibadan, Nigeria;
³cKrA Stratigraphic Ltd, Deganwy, Conwy, LL31 9YY United Kingdom;
⁴dInstitute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, The Netherlands

^*Corresponding author. Email: aadeonipekun@unilag.edu.ng
^** Peter Adegbenga Adeonipekun obtained his B.Sc., M.Sc. and Ph. D. at the University of Ibadan and is currently a lecturer in Palaeobotany and Palynology in the Department of Botany, Faculty of Science, University of Lagos, Nigeria. He has twenty-one year' experience as a Palynologist/Biostratigrapher in the Nigerian oil and gas industry, being involved in regional and multi-well bio-sequence stratigraphical studies across the Niger delta. His research interests include Cenozoic and Cretaceous palynology, Bio-sequence stratigraphy, Quaternary Palynology/Palaeoecology and Aeropalynology. He is a member of the Nigerian Association of Petroleum Explorationists (NAPE), Nigerian Mining and Geosciences Society (NMGS), and Palynological Association of Nigeria (PAN).
^*** Professor M. Adebisi Sowunmi has been engaged in post-doctoral palynological research and teaching since 1968. Her fields of interest include environmental archaeology, palaeoecology, melissopalynology, and pollen morphology. She has been visiting Professor at the Department of African Archaeology, Uppsala University, Sweden, Institute of Archaeology, University College London, England, and the Departments of African Archaeology and African Archaeobotany, Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany. She is currently an Adjunct Professor at the Department of Botany, University of Ibadan, Nigeria.
^**** Keith Richards is a palynologist with over 25 years' experience working on Cenozoic and Mesozoic sediments from all parts the world, with a particular interest in tropical Cenozoic palynology, sequence stratigraphy and deltas. He completed an MSc at Hull University on West African Holocene pollen. He is a palynologist with KrA Stratigraphic Ltd. in the UK and is a Research Associate at the Institute for Biodiversity and Ecosystem Dymanics (IBED) at the University of Amsterdam, The Netherlands.