This book broadens the reader's knowledge base on lithofacies distribution, facies succession and association, and interpretation of paleo-depositional environments using outcrop-based and measured se¬dimentologic section data integrated with facies and petrographic analyses. Besides, the author also provides step-by¬step workflow that could guide detailed geological field mapping and improve outcrop studies across Middle-Upper Cretaceous (Cenomanian–Campanian) successions of Southern Benue Trough and the lower stratigraphic interval of Anambra Basin, outcropping in Afikpo area of Southeastern Nigeria.