1. Geological Survey of Denmark and Greenland; Øster Voldgade 10 Copenhagen K DK-1350 Denmark
2. Swedish Museum of Natural History; Box 50007 Stockholm S-104 05 Sweden
3. Department of Chemistry; University of York; York YO10 5DD, UK
4. GEO; Maglebjergvej 1 Kongens Lyngby DK-2800 Denmark
5. Linnaeus University; Kalmar SE-391 82 Sweden
6. Department of Zoology; University of Cambridge; Downing Street Cambridge CB2 3EJ, UK
7. Zoological Museum; Universitetsparken 15 Copenhagen Ø DK-2100 Denmark
8. Institute of Geology and Mineralogy; University of Cologne; Zülpicher Str. 49A Cologne 50674 Germany