A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.
A pair of 'Sacabambaspis' fish, around 14 inches (35 centimeters) in length, which had distinct, forward-facing eyes and an ...
Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...
About 445 million years ago, Earth nearly wiped out life in the oceans. Glaciers spread across the supercontinent Gondwana, ...
Discover how the first mass extinction put jawed fishes on the map, species that would later come to dominate animal life on ...
During a geological blink of an eye, glaciers formed over the supercontinent Gondwana, drying out many of the vast, shallow ...
The fall in jawless vertebrates coincides with the rise of jawed vertebrates following the two pulses of the Late Ordovician ...
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 ...
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