A new study suggests that extreme temperatures could lead to a mass extinction event, ending the reign of humans and mammals ...

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 ...

The study claims that Earth's continents are drifting and will one day form a single supercontinent. This will be accompanied ...

A decade or so ago, I got to take a tour of one of the Federal Reserve banks; in the vault, there was a massive brass balance that our guide told us could weigh up to 600 pounds of gold (or anything ...

The Ordovician period and its impact spike correspond ... and a huge, marine-centered mass extinction second in scope only to the “Great Dying.” According to the paper, this was the coldest ...

or will it show up as a sharp band in which very bad things happened—like the mass extinction at the end of the Ordovician? That, Zalasiewicz says, is what we are in the process of determining.

Emma Bernard, a curator of fossil fish at the Museum, says, 'Shark-like scales from the Late Ordovician have been found ... saw yet another mass extinction event, wiping out around 96% of all marine ...

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 ...

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