1. Department of Earth and Space Sciences, University of California, Los Angeles, California, USA.
2. Center for the Study of Evolution and the Origin of Life, University of California, Los Angeles, California, USA.
3. Molecular Biology Institute, University of California, Los Angeles, California, USA.
4. NAI Penn State Astrobiology Research Center, University Park, Pennsylvania, USA.
5. School of Earth and Space Exploration, Arizona State University, Tempe, Arizona, USA.
6. Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.