TY - JOUR N2 - The radiolarian biostratigraphy of the Middle–Upper Jurassic pelagic siliceous sediments (Czajakowa Radiolarite Formation) in the Niedzica succession of the Pieniny Klippen Belt (Carpathians) is interpreted in terms of their age in a stratotype section, and facies equivalents in other tectonic-facies units of this region. The siliceous sediments are represented by radiolarian cherts and silicified limestones which are underlain and overlain by red nodular limestones, equivalents of the Rosso Ammonitico facies. The radiolarian association includes thirty-seven taxa belonging to twenty one genera which represent the Northern Tethyan Palaeogeographic Province. Key radiolarians recorded provide a means of correlation with zonation schemes based on Unitary Associations defined for the Jurassic Tethyan sediments. The age of the Czajakowa Radiolarite Formation in the stratotype section is determined as U.A.Z.9 to U.A.Z.11 corresponding to middle Oxfordian up to Kimmeridgian. Comparison of radiolarian biozones from the stratotype section with other facial equivalent sections in the Pieniny Klippen Belt reveals a significant diachronism for both the lower and the upper limits of the Jurassic pelagic siliceous facies. L1 - http://www.czasopisma.pan.pl/Content/108881/PDF/1_Bak.pdf L2 - http://www.czasopisma.pan.pl/Content/108881 PY - 2018 IS - No 1 EP - 20 KW - Middle-Late Jurassic KW - Radiolaria KW - taxonomy KW - biostratigraphy KW - Czajakowa Radiolarite Formation KW - pelagic siliceous facies KW - Pieniny Klippen Belt KW - Carpathians A1 - Bąk, Marta A1 - Chodacka, Sylwia A1 - Bąk, Krzysztof A1 - Okoński, Szymon PB - Komitet Nauk Geologicznych PAN PB - Wydział Geologii UW VL - vol. 68 DA - 2018.03.30 T1 - New data on the age and stratigraphic relationships of the Czajakowa Radiolarite Formation in the Pieniny Klippen Belt (Carpathians) based on the radiolarian biostratigraphy in the stratotype section SP - 1 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/108881 T2 - Acta Geologica Polonica ER -