T he D ivisions of P recambrian T ime You can find out more about the Precambrian by clicking on the chart below! 4.5 billion years ago, the Earth was born.

The Precambrian (Pre-Cambrian) is an informal name for the supereon comprising the eons of the geologic timescale that came before the current Phanerozoic eon.

More Info. Late Precambrian Supercontinent and Ice House World. This map illustrates the break-up of the supercontinent, Rodinia, which formed 1100 million years ago.

adjective . 1. noting or pertaining to the earliest era of earth history, ending 570 million years ago, during which the earth's crust formed and life first appeared in the seas.

An intro to the Precambrian era, includes a review of each of the geological sub-divisions and the various forms of life that lived during this time

Precambrian, span of time starting at the beginning of geologic time, when rocks first formed, and extending to the beginning of the Cambrian Period..

precambrian aeon: noun: the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago [syn: Precambrian]

A Tapestry of Time and Terrain: The Union of Two Maps - Geology and Topography

The Precambrian is an informal name for the eons of the geologic timescale that came before the current Phanerozoic eon. It spans from the formation of Earth around 4500 Ma ...