Deep Breath

No, no, I’m not going back to that dreadful experience, instead, have a tune, everyone!

Another geobiological boundary has to be relocated. According to this research. A more open access explanation is to be found here.

That’s not the first time someone presented evidence for presence of small amounts of O2 on Earth before GOE, but this one pushes the beginning of the changes even further back.

60 million years may not look much from pure geological perspective, but this find might help to further pinpoint the evolutionary period during which cyanobacteria or their ancestors developed.


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