At 13.9 degrees, there is much scope for Earth’s surface to get a lot warmer, as demonstrated by new study on its temperature ...

These first steps toward life on land were cut short by the freezing conditions that gripped the planet toward the end of the Ordovician. This resulted in the second largest mass extinction of all ...

For a long time, scientists have debated what caused the dinosaurs to die out 66 million years ago. Was it a huge asteroid or ...

The Late Ordovician Extinction Event (LOME), the first of the “Big Five” extinction events, decimated marine communities just prior to the end of the period (ca. 444 Ma). Graptolites, the principal ...

Abrupt climate change at the end of the Ordovician Period (~450-440 million years ago) caused the second largest mass extinction in Earth history, including the demise of the trilobite ...

But first there was a period of biological regrouping following the disastrous climax to the Ordovician ... drew to a close with a series of extinction events linked to climate change; however ...

This theory sheds light on the presence of an unusual density of impact craters around the equator dating back to the Ordovician period ... periods and biggest mass extinction events.