Global Surface Photosynthetic Biosignatures Prior to the Rise of Oxygen

Mary Nichole Parenteau, SETI Institute Mountain View, Mountain View, United States, Nancy Y Kiang, NASA Goddard Institute for Space Studies, New York, NY, United States, Robert E. Blankenship, Washington University in St Louis, St. Louis, MO, United States, Esther Sanromá, Instituto de Astrofísica de Canarias, Tenerife, Spain, Enric Palle Bago, Universidad de La Laguna, Departamento de Astrofísica, La Laguna, Spain, Tori M Hoehler, NASA Ames Research Center, Moffett Field, CA, United States, Beverly K. Pierson, University of Puget Sound, Biology Department, Tacoma, WA, United States and Victoria Suzanne Meadows, University of Washington, Astronomy, Seattle, United States