1. Department of Geoecology and Palaeogeography; Maria Curie-Skłodowska University; Al. Kraśnicka 2 c, d 20-718 Lublin Poland
2. Institute of Geological Sciences, Polish Academy of Sciences; Twarda 51/55 00-818 PL Warsaw Poland
3. National Museum of Natural History at the National Academy of Sciences of Ukraine, Institute of Geological Sciences, National Academy of Sciences of Ukraine; 15 Bohdan Khmelnitsky Kyiv 01601 Ukraine
4. Department of Geomorphology and Palaeogeography; Ivan Franko National University; Doroshenka 41 79000 Lviv Ukraine