UNUSUAL DEVONIAN PALYNOMORPHS- TENTACULITOIDS (KOWALA 1 BOREHOLE, HOLY CROSS MOUNTAINS, SOUTH-CENTRAL POLAND)

Abundant and well-preserved assemblage of tentaculitoids was documented from the Devonian (Frasnian?) carbonate deposits. Analysed interval was obtained directly from the Kowala 1 borehole (Kielce Area, Holy Cross Mountains, south-central Poland). Small, calcareous fossils known as tentaculitoids are rarely preserved as palynomorphs. Observed zooomprhs had a bulbous embryotic chamber and tapering, conical shells ornamented with annulet and transverse rings. This kind of the fossils is commonly thought to be the outer, organic layer of the tentaculitoids. The general morphology suggests the specimens to be the representatives of orders Nowakiida and Stylionida. So far, we have had only three palynological occurrences of those microfossils.

This project was financially supported by NCN grant 2017/N/ST10/01699 (for M. Kondas, University of Silesia in Katowice).