Precambrian rocks are exposed over a large part of eastern Cana... | Filo

SOLVED:What does the existence of iron-rich rocks during the Precambrian indicate about the evolution of Earth's atmosphere?

Prehistoric Nature Precambrian Dimension

Precambrian

@Nature | What Sparked the Cambrian Explosion? An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals. The trigger behind that revolution is finally coming into focus. http://www.nature.com/news/what-sparked-the-cambrian-explosion-1.19379 Video from "Gentle giants of the Cambrian" published by Nature. https://www.youtube.com/watch?v=3aLd8NN0YtY | Prehistoric Life in the Phanerozoic Eon

The Precambrian Era: A Journey Through Earth's Deep Past | SchoolTube

Chapter 8 Precambrian Earth and Life History—The Archean Eon - SlideServe

Precambrian (Earth's Geologic Time Scale Impact), by Sverre Knut Johansen

Earth's History