‘Waterworld’ Earth preceded late rise of continents, scientist proposes

Expansion of dry land may have enabled Cambrian explosion


WATER WORLD  The continents rose above sea level only a few hundred million years ago, a new proposal states. Before that time, Earth’s surface was mostly covered by water.

Tfioreze/Wikimedia Commons (CC BY-SA 3.0)

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Earth

From the Nature Index

Paid Content