Devonian period

An artist’s impression of Tutusius at Waterloo Farm. Credit: Illustration by Maggie Newman

New Fossils Offer First Evidence of Four-Legged Aquatic Ancestors in Africa

The Pāhoehoe lava flow, Hawaii. Credit: Brocken Inaglory/Wikimedia Commons, CC BY-SA 3.0

A Brief History of Earth: Dancing With Complex Life and Continents in the Devonian