1. Geological Museum, Lausanne University, Quartier UNIL-Dorigny, Bâtiment Anthropole, CH-1015 Lausanne, Switzerland
2. Natural History Museum, University of Oslo, PO Box 1172 Blindern, NO-0318 Oslo, Norway
3. Department of Geoscience, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4 Canada
4. Department of Geology and Geophysics, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4 Canada
5. Geological Survey of Canada, 3303 33rd St. NW, Calgary, Alberta, T2L 2A7 Canada