Current trends suggest we’re now in another extinction crisis, although it’s unclear if whether that amounts to a sixth mass extinction. The Ordovician-Silurian mass extinction event may have wiped ...

Current trends suggest we’re now in another extinction crisis, although it’s unclear if whether that amounts to a sixth mass extinction. The Ordovician-Silurian mass extinction event may have wiped ...

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 ...

As per a study published in the Monthly Notices of the Royal Astronomical Society, the late Devonian extinction (about 372 million years ago) and the Ordovician extinction (about 445 million years ...

a series of mass extinction events that occurred 372 million years ago, and the Ordovician, which occurred 445 million years ago and was the first of the big five mass extinction events in our ...

We study trilobites from four periods of the Palaeozoic: the Cambrian, Ordovician, Silurian and Devonian. Our research covers trilobite taxonomy, phylogeny, functional morphology, biogeography, and ...

Instead, the team hypothesized a stellar explosion may have been a potential factor in the Late Devonian extinction event 372 million years ago and one at the end of the Late Ordovician 445 ...

Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth ... stars—could be ...

Two of Earth's largest mass extinction events were likely triggered ... those at the end of the Ordovician Period, some 445 million years ago, and the end of the Devonian, about 372 million ...

Instead, the team hypothesized a stellar explosion may have been a potential factor in the Late Devonian extinction event 372 million years ago and one at the end of the Late Ordovician 445 ...