1. Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
2. Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario, K1A 0E8, Canada
3. Natural History Museum, London, SW7 5BD, United Kingdom
4. Geosciences, Queensland Museum, 122 Gerler Road, Hendra, Queensland 4011
5. School of Earth and Environmental Sciences, University of Queensland, St. Lucia, Queensland 4072, Australia