1. Natural History Museum; University of Copenhagen; Øster Voldgade 5-7 DK-1350 Copenhagen Denmark
2. Geological Survey of Denmark and Greenland; Øster Voldgade 10 DK-1350 Copenhagen K Denmark
3. Department of Biology and Environmental Science; Linnaeus University; 391 82 Kalmar Sweden
4. Institute of Applied Geology; University of Natural Resources and Life Sciences; BOKU Vienna; Peter-Jordan-Str. 70 Vienna A-1190 Austria