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 ...

In a study published in Precambrian Research Monday by scientists ... behaviour observed in primitive simple animal-like life forms such as those found in the fossils from this period,” Fru ...

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 ...