The sverdrupi Zone in the Lower Triassic of Svalbard

Andrzej Gaździcki, Jerzy Trammer


The ammonite Vavilovites afi. sverdrupi (Tozer), that is close to the index species of the sverdrupi Zone of the Upper Dienerian, is reported from the Lower Triassic (Vardebukta Formation) of the Bellsund area, Svalbard. Consequently, the problem of the Dienerian/Smithian boundary in the area is discussed.

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