Researchers at the University of Liège (ULiège) have identified microstructures in fossil cells that are 1.75 billion years old.
thylakoid membranes
![Images of microfossil specimens of Navifusa majensis. (Demoulin et al., Nature, 2024) [L] one of the microfossils with stacks of thylakoids highlighted using yellow bars [R] magnification of the end of the cell.](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/01/FossilCellsProvide.png?resize=1200%2C838&ssl=1)
Posted inBiosignatures & Paleobiology, Fossils & Paleontology, Imaging & Spectroscopy, Microbiology & Virology, Origin & Evolution of Life, Plant Biology, Status Report
Fossil Cells Provide Evidence Of Early Oxygenic Photosynthesis On Earth
Today oxygenic photosynthesis is unique to cyanobacteria and their plastid relatives within eukaryotes. Although its origin before the Great Oxidation Event is still debated 1,2,3,4, the accumulation of O2 profoundly […]