Conodont biostratigraphy of the Givetian/Frasnian boundary beds at Kostomłoty in the Holy Cross Mts

Grzegorz Racki

Abstract


The Upper Givetian fossiliferous limestones and marls exposed at Kostomłoty in the Holy Cross Mts, Central Poland, contain a rich conodont fauna which evidences the varcus through disparilis Zones. These zones have hitherto been unknown in the Holy Cross region, and the Givetian/Frasnian boundary runs within the overlying marl-shaly Szydłówek Beds. The Kostomłoty quarries are thought to be the key sections for the studies of this stage .boundary in the Holy Cross Mts.


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