1. Western Australian Organic and Isotope Geochemistry Centre, Department of Chemistry, Curtin University, Perth, Western Australia 6102, Australia.
2. Earth and Planetary Sciences, Western Australian Museum, Perth, Western Australia 6000, Australia.
3. European Synchrotron Radiation Facility, 38043 Grenoble Cedex, France.
4. Subdepartment of Evolution and Development, Department of Organismal Biology, Uppsala University, Norbyvägen 18A, 752 36 Uppsala, Sweden.
5. School of Biological Sciences, Flinders University, PO Box 2100, Adelaide, South Australia 5001, Australia.
6. Research School of Earth Sciences, The Australian National University, Canberra 0200, Australia.
7. Department of Applied Mathematics, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
8. Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia.