1. Department of Geology and Geophysics University of Utah Salt Lake City UT USA
2. Department of Mineral Sciences National Museum of Natural History Smithsonian Institution Washington DC USA
3. Biogeology Research Group Department of Earth and Environmental Sciences KU Leuven Leuven Belgium
4. Directorate Earth and History of Life Royal Belgian Institute of Natural Sciences Brussels Belgium
5. Department of Earth and Planetary Sciences Yale University New Haven CT USA
6. Department of Earth and Environmental Sciences Wesleyan University Middletown CT USA
7. Global Change and Sustainability Center University of Utah Salt Lake City UT USA