The Famennian brachiopod Zilimia polonica (Gürich) and its palaeoenvironmental significance

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

“…In relation to the marly strata, the bioclastic layers feature, on the one hand, by the presence of a different assemblage of fossils (among which crinoids, calcareous foraminifers and green algae are distinct elements), and, on the other hand, by sedimentological features such as distinct graded bedding, thicknesses even up to 100 cm and common presence of an underlying breccia/conglomerate member. These attributes, especially the fossil assemblage, enable to distinguish the bioclastic layers from the Zbrza and Jaźwica sections from the Lower Famennian ones described by Biernat and Szulczewski () and Racki et al . ().…”

“…In contrast to the marly sediments, bioclastic intercalations were occasionally interstratified within the deep-marine succession. Rhythmically bedded crinoid-brachiopod marls (with Zilimia polonica as the most important element), sporadically occurring within the alternating thin-bedded marly limestones and shales, were described by Biernat and Szulczewski (1993) from the Psie Górki section (northern part of the Chęciny-Zbrza Basin). Additionally, several centimetre-to decimetre-thick layers of microbioclastic molluscan-homoctenid and brachiopodcrinoid packstones to grainstones were described in MF4 by Racki et al (2002) from the Kowala section (central part of the Chęciny-Zbrza Basin).…”