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 encompasses 86 percent of the history of Earth. As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian ...

For the first time, this fossil provides direct evidence of early ecdysozoan life forms from the Precambrian. The fossil boasts several unique features—its cylindrical body, a consistent length ...