1. Department of Biology, Brandon University, Brandon, MB, Canada
2. Geological Survey of Canada–Commission géologique du Canada, Calgary, AB Canada;
3. Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
4. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada;
5. Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Federal Institute for Geosciences and Natural Resources, Hannover, Germany