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Conodont described by the present author form chalcedonites of the Zbilutka Member, the lower unit of the Międzygórz Formation in the Holy Cross (Góry Świętokrzyskie) Mts, Poland, indicate an Upper Tremadocian age of this member. The conodont assemblage represents the Drepanoistodus deltifer pristinus Subzone which is characteristic for the Late Tremadocian Varangu stage in Estonia. The conodont dating...
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