The new life burgeoning on land apparently escaped the worst effects of the mass extinction that ended the Devonian. The main victims were marine creatures, with up to 70 percent of species wiped out.

The five peaks show the "Big Five" mass extinction events, when extinction rates sharply exceeded background rates. These occurred at the end of the Ordivician, the Late Devonian, the Permian ...

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

The Ordovician extinction killed 60 per cent of marine invertebrates at a time when life was largely confined to the sea, while the late Devonian wiped out around 70 per cent of all species and ...

Dunkleosteus was a massive armored fish that ruled the Devonian seas over 358 million ... giant dominated the oceans before its mysterious extinction! Bodies of Three Missing U.S. Soldiers ...

resulting in a chain of events that could cause a mass extinction. During the Devonian geological era, life thrived on land for the first time, but early land plants and animals making the ...

Extinction is a natural part of life on Earth. But occasionally ... hypothesize the extinction crisis was driven by changes in ocean chemistry or a cooling climate that caused sea levels to drop as ...

The Ordovician extinction killed 60% of marine invertebrates at a time when life was largely confined to the sea, while the late Devonian wiped out around 70% of all species and led to huge ...