News tagged with mass extinction

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Rapid rise of the Mesozoic sea dragons

In the Mesozoic, the time of the dinosaurs, from 252 to 66 million years ago, marine reptiles such as ichthyosaurs and plesiosaurs were top predators in the oceans. But their origins and early rise to dominance have been ...

dateMay 20, 2016 in Archaeology & Fossils
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Researcher links mass extinctions to 'Planet X'

Periodic mass extinctions on Earth, as indicated in the global fossil record, could be linked to a suspected ninth planet, according to research published by a faculty member of the University of Arkansas Department of Mathematical ...

dateMar 30, 2016 in Astronomy
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