Stromatolite fossil dating
Up until roughly 3.9 billion years ago, Van Kranendok says that meteorites violently bombarded Earth, vaporizing our oceans and sterilizing the planet. it might have taken a billion years for life to evolve,” Van Kranendok said.
“And then this discovery of life is only 3.7 billion years, so it actually only gives us a 200 million year window for life to evolve.” What’s even more significant, Van Kranendok adds, is that this discovery shows that 3.7 billion years ago, life was already incredibly diverse.
Unusually heavy spring rains recently melted a longstanding snow patch, exposing a distinct layer of rock.
The rock layer contained a level bottom, but the top was jagged.
A team of Australian researchers have uncovered the world’s oldest fossils in a remote corner of frigid Greenland, giving us a glimpse of Earth’s earliest lifeforms -- lifeforms that could have also existed on Mars.
Climate change has triggered the excessive melting of ice and snow in western Greenland.
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Scientists have found the oldest known remnant of life, a fossil dating back a staggering 3.7 billion years.
If confirmed, the date would support the theory that life took root in just a blink of an eye after the planet’s birth.