The End-Ordovician Extinction was the first of the so-called ‘Big Five’ mass extinctions in the history of life on Earth - more than 80% of species in the oceans died out. But could you ...

The researchers' idea that Earth once had rings comes from reconstructions of Earth's plate tectonics from the Ordovician period —which ran between 485.4 million years and 443.8 million years ...

This period, which occurred near the end of the Ordovician, is recognized as one of the coldest in the last 500 million years of Earth's history.

The Ordovician period offers a detailed window into early marine ecosystems and climatic transitions, with palynology and microfossil biostratigraphy serving as key tools in reconstructing these ...

Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the ...

The Ordovician period’s impact spike coincides with the Hirnantian glaciation, a period of intense cold leading to glacier formation, sea level drops, and major marine extinctions.

It was a good week for space science, as a trio of Earth scientists at Monash University found evidence that Earth may have had a ring system 466 million years ago—in studying plate tectonics during ...

Cassie Testifies Diddy Forced Her into Sex During Her Period — and Described an Especially 'Humiliating' Act Casandra "Cassie" Ventura, who dated Sean "Diddy" Combs for 11 years, is the star ...

One of Earth's most consequential bursts of biodiversity—a 30-million-year period of explosive evolutionary changes spawning innumerable new species—may have the most modest of creatures to thank for ...

Home > Science Astronomers: Earth Had Saturn-Like Rings 466 Million Years Ago The temporary ring system may explain some strange geological happenings during the Ordovician Period.

Around 466 million years ago, at the beginning of the Ordovician period, many more meteorites crashed to the Earth, leaving specific impact craters in the geological record.