Diatoms Bolewskia reymanownae gen. nov. et sp. nov., Protorhaphoneis stanislai gen. nov. et sp. nov., and Xanthiopyxis polonica sp. nov. from the Przeworno marbles in Poland
Department of Mineralogy, Mineral Resources and Environments Geochemistry, University of Mining and Metallurgy, al.Mickiewicza 30, 30–059 Krakow, Poland