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3. Stop 2A, Corallian reefs, Stanford Quarry, Oxfordshire;Ali,1987
4. The Coralian Beds of Oxford, Berks, and North Wilts;Arkell;Philosophical Transactions of the Royal Society, Series B,1927
5. A map of the Corallian Beds between Marcham and Faringdon, Berkshire;Arkell;Proceedings of the Geologists' Association,1939