International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

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Latest Maastrichtian foraminiferal assemblages from the Husów region (Skole Nappe, Outer Carpathians, Poland)

Published: Aug 2009

Pages: 283 - 294

DOI: https://doi.org/10.2478/v10096-009-0020-5

Authors: M. ADAM GASINSKI,ALFRED UCHMAN

Abstract: The Ropianka Formation (also known as the Inoceramian Beds) in the marginal part of the Skole Nappe (Husów region, the Gaj section) contains abundant, diverse and well preserved assemblages of Maastrichtian planktonic and benthic foraminiferids, assigned to the middle-upper part of the Gansserina gansseri Zone and to the Abathomphalus mayaroensis Zone. The composition of the assemblages indicates fluctuations of organic matter flux to the marginal part of the Skole Basin floor in the studied interval. The studied taxa are typical of the “transitional zone” between the Tethyan and the Boreal domains. The disappearance of planktonic foraminifers in the uppermost part of the section and appearance of some agglutinated taxa (Rzehakina fissistomata; abundant Conglophragmium irregularis and Glomospira charoides) points to a Paleocene age.

Keywords: Maastrichtian, flysch, transitional zone, paleoecology, biostratigraphy, foraminiferids

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