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Post-glacial : Upper diluvial. Glacial : Lower diluvial. Arverne : Upper pliocene. Subapennine : Lower pliocene. Falun : Upper miocene. Limbourg : Lower miocene. Aquitaine : Upper oligocene. Ligurium : Lower oligocene. Gypsum : Upper eocene. Coarse chalk : Middle eocene. London clay : Lower eocene. White chalk. : Upper cretaceous. Green Sand : Middle cretaceous. Neocomian : Lower cretaceous.
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