Abstract

The Senonian, Campanian, and Maestrichtian stages (Cretaceous) in their west European type areas are defined. The stratigraphy, zonal names, and belemnoid fauna of the Norwich and Trimingham Chalk of Norfolk, England, are discussed and revised; the Trimingham Chalk is assigned to the lower Maestrichtian, and the Norwich Chalk to the upper Campanian.

You do not currently have access to this article.