#paleobiology #astrobiology #archaea An article published in the journal "Science Advances" reports the discovery of #microfossils of the oldest known methanogenic #microorganisms, with an estimated age of 3.42 billion years.
https://english.netmassimo.com/2021/07/16/fossils-of-methanogenic-microorganisms-from-3-42-billion-years-ago-have-been-discovered/