Tomkins and his team reconstructed an unusual rise in the number of meteorite impacts known as the Ordovician impact spike, ...

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

Learn about Earth's Ordovician period, which ended in the greatest Mass Extinction of all time.

Impact craters found around the Earth that were made around the same time could be linked to debris falling from a ring, a new study suggests.

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 ...

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 ...

Scientists have been trying to unravel what killed nearly all of Earth’s animals 400 million years ago. Could it be monstrous deformities caused by toxic metals in the ocean?

How long did the Ordovician period last, and what caused the Ordovician mass extinction to wipe out 85 percent of life on earth 445 million years ago?

At the Limper Geology Museum, you will be able to explore a large collection of local rock, mineral, and fossil samples representative of southwestern Ohio's geologic history. Learn how the rocks ...

Specifically, the findings support the hypothesis that supernovae could have triggered two of the so-called "big five" mass extinctions: those at the end of the Ordovician Period, some 445 million ...

The fossilized time capsule from Castle Bank is from the middle of the Ordovician Period, about 462 million years ago.