Its Precambrian sandstone beds, once an ancient seafloor, are rich with fossils that capture life from over half a billion years ago. The remarkable preservation of these fossils owes much to the ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms ...

The Precambrian eon is vast ... and various asteroids -- forms from interstellar gas and dust. Prelude to life (4,550-3,900 mya) Planet Earth is very hot at its formation. As it cools and its ...

Even organisms that hadn't evolved hard parts, and thus didn't leave fossils of their bodies, left fossils of the trails they made as they moved through the Precambrian mud. Life was flourishing ...

However, a new theory suggests that animal life may have instead begun around 2.1 billion years ago. A study published in August 2024 in the journal Precambrian Research detailed how formations in ...