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Campanian Stage

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Campanian Stage 

a stage of the Upper Cretaceous, identified in France by the French geologist H. Coquand in 1857. Atypical cross section contains light blue, gray, and whitish clayey limestones and marls with numerous ammonites and sea urchins. The Campanian stage corresponds in time to the greatest transgression of the seas over former land in the Cretaceous period. It is extensively developed both on platforms and in geosynclinal areas. The Campanian stage may be identified in Upper Cretaceous deposits in Europe, Africa, Asia, and North America by the presence of a group of typical fossils, including Foraminifera, belemnites, mollusks, and sea urchins.



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