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Jaroslav Kraft
Michal Mergl
Center of Biology, Geosciences and Environmental Sciences, Faculty of Education, University of West Bohemia in Plzeň, Klatovská 51, 306 19 Plzeň, Czechia
Tomáš Hroch
Czech Geological Survey, Klárov 3, 118 21 Praha 1, Czechia
Petr Kraft
Institute of Geology and Palaeontology, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2, Czech Republic Czechia
West Bohemian Museum in Plzeň, Kopeckého sady 2, 301 00 Plzeň, Czechia