Early cyanobacteria fossils dug up in 1965
Excerpt from the October 30, 1965, issue of Science News Letter
BLUEISH GREENISH Cyanobacteria were the world’s first oxygen-producing photosynthetic organisms. The fossil record is spotty for these organisms, which are also called blue-green algae.
CSIRO/Wikimedia Commons (CC BY 3.0)
Ancient algae found — Tiny fossils of some of the oldest blue-green and green plants on Earth were found in well-preserved condition in Bitter Springs limestone in central Australia.