1. Ontario Geological Survey, Sudbury, ON P3E 6B5, Canada.
2. Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
3. Department of Geography, Michigan State University, East Lansing, MI 48824, USA.
4. Illinois State Geological Survey, University of Illinois at Urbana-Champaign, Champaign, IL 61801, USA.
5. Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA.
6. Department of Natural History, Royal Ontario Museum, Toronto, ON M5S 2C6, Canada.
7. Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada.