Biostratigraphy and Depositional Environment of Numanha Shale of the Yola arm of the Upper Venue Trough

This research is about the biostratigraphy and depositional environment of Numanha shale of the Yola arm of the Upper Venue Trough. Five location within the study area were studied and sample were collected so as to analyze for microfossil and petrographic characteristics of the samples collected during field mapping /sample collection.