Oldest Thylakoids Found in Fossil Cyanobacteria Unveil Photosynthesis Evolution  Mirage NewsScientists Just Made a 1.75 Billion-Year-Old Discovery About the Origin of Life  VICEOldest evidence of photosynthesis found, dating back 1.75 billion years  Interesting EngineeringScientists Uncover the Earliest Fossil Evidence of Photosynthesis  Smithsonian MagazineAustralian fossil suggests photosynthesis evolved at least 1.75 billion years ago  Phys.org