World's Oldest Plant-Like Fossils Discovered (IMAGE) PLOS Caption X-ray tomographic picture (false colors) of fossil thread-like red algae. Credit Stefan Bengtson Usage Restrictions All figures and photographic images will be published under a Creative Commons Attribution License (CCAL), which allows them to be freely used, distributed, and built upon as long as proper attribution is given. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.