Okoński, S.P., Górny, Z., Bąk, M. and Bąk, K. 2014. Lithistid spicules in the sediments of the Turonian Variegated Shale in the Silesian Nappe, Polish Outer Carpathians. Geology, Geophysics and Environment. 40, 1 (Mar. 2014), 33. DOI:https://doi.org/10.7494/geol.2014.39.1.33.