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Keywords from Image Description:
The Quarterly journal of the Geological Society of London . PROCEEDINGS OF THE GEOLOGICAL SOCIETY Apr shell of the Terrain Landenien The margaritacea is also mentioned by Nyst as fossil of the Terrain Landenien and by D'Archiac and Melleville as from the Sables Inferieurs Resembles the Saxicava Grignonensis of Deshayes We