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

Armored and jawless Jawless fishes from the Ordovician Period — 488.3 million to 443.7 million years ago — are called ostracoderms, after their armored skin, and most of them are known from ...

Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago ...

The Ordovician Radiation, also called the Great Ordovician Biodiversification Event ... (fish and cephalopods), setting into motion an evolutionary 'arms race.' Essentially, ...

Early species developed much faster than previously thought Landmark review of Great Ordovician Biodiversification Event Date: August 15, 2019 Source: ...

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 ...

CINCINNATI — Visitors to the Cincinnati Museum Center can now experience a new, permanent exhibit offering a peek into a world that existed 450 million years ago.

They precisely determined the absolute ages of the Katian–Hirnantian boundary (442.65+0.17/−0.23 Ma) and the Ordovician–Silurian boundary (442.33+0.34/−0.33 Ma), constraining the duration ...

During the Ordovician period, the concentration of CO2 in the earth's atmosphere was about eight times higher than today. It has been hard to explain why the climate cooled and why the Ordovician ...