1. Department of Earth Sciences, University College London, London, UK
2. School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, UK
3. Department of Earth Science, University of California at Santa Barbara, Santa Barbara, CA, USA
4. Department of Earth and Planetary Sciences, McGill University, Montreal, Canada
5. Geoscience Australia (retired), Canberra, Australia
6. Instituto de Geociências, Universidade de Brasília, Brasilia, Brazil
7. Department of Geology, University of Delhi, Delhi, India
8. Department of Earth and Planetary Sciences, University of California, Riverside, CA, USA
9. Geological Survey of Canada, Ottawa, Canada
10. School of Geosciences, University of Aberdeen, Aberdeen, UK
11. Department of Earth Sciences, The University of Adelaide, Adelaide, Australia
12. New Mexico Institute of Mining and Technology, Albuquerque, NM USA
13. Department of Earth and Planetary System Sciences, Hiroshima University, Hiroshima, Japan
14. Department of Earth and Planetary Sciences, Yale University, New Haven, CT, USA
15. Department of Earth Sciences, Carleton University, Ottawa, Canada
16. Faculty of Geology and Geography, Tomsk State University, Tomsk, Russia
17. Isotope Geosciences Unit, S.U.E.R.C., East Kilbride, UK
18. Institute of Geography and Geology, University of Würzburg, Würzburg, Germany
19. Department of Earth and Planetary Sciences, Harvard University, Boston, MA, USA
20. University of Victoria, Victoria, Canada
21. School of Earth and Atmospheric Sciences, Queensland University of Technology, Brisbane, Australia
22. Institute of Precambrian Geology and Geochronology, R.A.S., St. Petersburg, Russia
23. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
24. Centro de Investigaciones Geológicas–CONICET–FCNyM, (UNLP), La Plata, Argentina
25. School of Earth and Environment, University of Leeds, Leeds, UK
26. Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN, USA
27. Birbal Sahni Institute of Palaeosciences, Lucknow, India
28. Department of Earth Sciences, University of St. Andrews, St. Andrews, UK
29. Department of Geological Sciences, University of Cape Town, Cape Town, South Africa
30. Laurentian University, Sudbury, Canada
31. Department of Geosciences, Virginia Tech, Blacksburg, VA, USA
32. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, China
33. Nanjing Institute of Geology and Palaeontology, Nanjing, China