Long before the dawn of humans, dinosaurs, insects or even trees, a cascade of unfortunate events threatened to end life on earth. During the Ordovician Period, around 485 to 444 million years ago, ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

The fossil record of mass extinctions older than 300 million years is a bit sketchy, as life existed only in the sea at the time. The end-Ordovician mass extinction correlates with the Suordakh ...

The Ordovician period, from 485 to 444 million years ago, ... The second worst mass extinction known to science, this event killed an estimated 85 percent of all species.

At least five times, a biological catastrophe has engulfed Earth killing off the vast majority of species. As scientists say we’re in a sixth mass extinction, what can we learn from the past?

Ordovician-Silurian. The Ordovician-Silurian mass extinction event may have wiped out some 85 percent of species, including many of the invertebrates this period is known for. Some scientists ...

Surprising new fossil evidence undermines the idea that there was ever a mass extinction on land – and may force us to ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

The “Big Five” mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction ...