1. Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri, USA
2. Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
3. School of Earth Sciences, The University of Melbourne, Parkville, Victoria, Australia
4. Department of Biology, University of Missouri, St. Louis, Missouri, USA
5. Division of Biology and Biomedical Sciences, Washington University, St. Louis, Missouri, USA