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A New Study of the Ordovician Mass Extinction

The second-largest mass extinction in Earth's history coincided with a short but intense ice age during which enormous glaciers grew and sea levels dropped. Although it has long been agreed that the so-called Late Ordovician mass extinction—which occurred about 450 million years ago—was related to climate change, exactly how the climate change produced the extinction has not been known.
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Ordovician Extinction was Caused by the Kitchen Sink?

Biology / Paleontology : The Dragon's Tales (8 months ago)

End Ordovician extinctions: A coincidence of causesAuthors:Harper et alAbstract:The end Ordovician (Hirnantian) extinction was the first of the five big Phanerozoic extinction events, and the first that involved metazoan-based commu... Read Post

Mass extinction linked to ancient climate change

Academics / General Science : Science Daily (4 years ago)

About 450 million years ago, Earth suffered the second-largest mass extinction in its history -- the Late Ordovician mass extinction, during which more than 75 percent of marine species died. Exactly what caused this tremendous loss... Read Post

What triggers a mass extinction? Habitat loss and tropical cooling were once to blame

Academics / General Science : Science Daily (3 years ago)

The second-largest mass extinction in Earth's history coincided with a short but intense ice age. Although it has long been agreed that the so-called Late Ordovician mass extinction was related to climate change, exactly how the cha... Read Post


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