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Keywords from Image Description:
The Quarterly journal of the Geological Society of London . of this species remarks Observations on some of the strata between the Chalk and Oxford Oolite Geol Trans vol iv Page Text biodiversitylibrary org Geological Society of London NameFound Nerita angulata NameConfirmed Pnorisa angulata Karny EOLID NameFound Nerita sinuosa