Learn about the time period that took place 416 to 359 million years ago. Learn about Earth's Devonian Period and prehistoric life. Ice Age remnants of crystalline rock dot the coast north of Haast.

The newest exhibit at The Academy of Natural Sciences of Drexel University will give visitors a glimpse into the world millions of years ago. "Life Onto Land: The Devonian" centers around the ...

Extended periods of marine anoxia — a lack of oxygen in the water — characterized the Late Devonian Mass Extinction. The two most pronounced periods are known as the Kellwasser event, which occurred ...

The Devonian period, which lasted from about 419 million to 359 million years ago, culminated in a mass extinction event. During the Devonian, life on dry land was just getting started, and plants ...

Indeed, the discovery of even a few plutonium-244 atoms in late Devonian fossils would be corroborating evidence for the supernova hypothesis. There are other extinction events that occurred earlier ...

NOVA: At the moment you saw that material, what were you thinking? Clack: Well, very often you don't realize immediately what it is you're looking at. It will take several days, or even a week or ...