1. Faculty of Natural Sciences, University of Silesia in Katowice, Sosnowiec, Poland
2. Institute of Geological Sciences of University of Wrocław, Wrocław, Poland
3. Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Kraków, Poland
4. Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, Kraków, Poland
5. Faculty of Science and Technology, University of Silesia in Katowice, Sosnowiec, Poland
6. Natural History Museum, Vienna, Austria
7. Institute of Paleobiology, Polish Academy of Sciences, Warszawa, Poland