Tomas Weiner (Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlárská 2, 611 37 Brno, Czech Republic), Jiri Kalvoda (Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlárská 2, 611 37 Brno, Czech Republic), Tomas Kumpan (Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlárská 2, 611 37 Brno, Czech Republic), Ondrej Babek (Department of Geology, Faculty of Science, Palacký University, 17. listopadu 12, 771 46 Olomouc, Czech Republic), Hedvika Poukarova (Department of Geological Sciences, Faculty of Science, Masaryk University, Kotlárská 2, 611 37 Brno, Czech Republic)