Famennian Fusulinina (Foraminifera) from the Holy Cross Mountains (central Poland)

Authors


K. Wójcik, Faculty of Geology, Institute of Geology, University of Warsaw, Al. Żwirki i Wigury 93, PL 02–089 Warsaw, Poland. E-mail: krystian.karol.wojcik@student.uw.edu.pl

Abstract

Calcareous foraminifers representing 9 species and 5 genera were investigated in two Famennian sections located in the south-western part of the Holy Cross Mountains (HCM), central Poland. They constitute redeposited material that, together with crinoids and calcareous algae, comprise the dominant component of limestone turbidite beds intercalated with deep-marine marly sediments. The calcareous material was redeposited from an unknown carbonate platform located probably to the south of the HCM area. The first appearance data of foraminifers, mainly from the quasiendothyrid group, correlated to the Standard Conodont Zonation, indicate a diachronous appearance of the same species in different parts of Europe due to a migration delay from the foraminiferal evolutionary centre located in the south-eastern shelves of Laurussia in the neighbouring areas. As a result, the Moravian foraminiferal zonation, where index taxa appeared in similar stratigraphic intervals, was chosen as the most applicable to the stratigraphy in the central Polish area. The Quasiendothyra communis–Eonodosaria evlanensis Interzone, the Quasiendothyra communis–Quasiendothyra regularis Zone and Quasiendothyra kobeitusana–Quasiendothyra konensis Zone were distinguished, respectively, in the HCM sections. Copyright © 2012 John Wiley & Sons, Ltd.

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