The stratigraphy of the Actinocamax plenus Subzone (Turonian) in the Anglo-Paris Basin

  title={The stratigraphy of the Actinocamax plenus Subzone (Turonian) in the Anglo-Paris Basin},
  author={R. Jefferies},
In the central parts of the Anglo-Paris Basin the Actinocamax plenus Subzone of the Inoceramus labiatus Zone conforms more or less to a standard succession of eight beds, numbered 1 to 8 in ascending order, which differ from each other in fauna and lithology. There are important erosion surfaces beneath Beds 1 and 4 and less important ones also beneath Beds 2, 6 and 8. In the outer parts of the Anglo-Paris Basin the plenus Subzone is represented by a condensed succession or stratigraphical gap… Expand
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