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Keywords from Image Description:
The Quarterly journal of the Geological Society of London . Fig Vertical Section of Uordwdl Cliff from the top of the Lower Ifcadon Beds to the base of the Upptr Bagshot Sands Scale inch to foot Total thiclnifji of Luwcr Ik hi beds feet Fig Illustration biodiversitylibrary org Geological Society of London Biodiversity