A predominantly carbonate succession in northern Spitsbergen has yielded faunas of Early Cambrian, and early Canadian to White-rock ages. Middle and Late Cambrian faunas are absent. The lower part of the succession compares closely with other sections in the North Atlantic, which were deposited under shallow water and platform conditions with faunas of “Pacific” type. Black graptolitic limestone and shale of the Valhallfonna Formation of Arenig age contain trilobites of European aspect which probably represent deeper water conditions.

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