Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

The Ordovician world was a watery one in which vast oceans covered almost the entire northern hemisphere. In the south, the mega-continent of Gondwana drifted. According to the University of ...

This surprising hypothesis, published in Earth and Planetary Science Letters, stems from plate tectonic reconstructions for the Ordovician period noting the positions of 21 asteroid impact craters.

But first there was a period of biological regrouping following the disastrous climax to the Ordovician. The recovery soon got under way in the oceans as climbing temperatures and rising sea ...

The earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. Emma Bernard, a curator of fossil fish at the Museum, ...

Researchers have proposed that Earth may have had a ring system 466 million years ago, during a period of intense meteorite bombardment known as the Ordovician impact spike. This finding ...