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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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Mass extinction linked to ancient climate change
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
Evidence of Cooling in the Late Ordovician from Siberia
Late Ordovician cooling event: Evidence from the Siberian cratonAuthor:1. Andrei Dronov (a)Affiliation:a. Geological Institute, Russian Academy of Sciences, Pyzhevsky per.7, 119017, Moscow, RussiaAbstract:The Upper Ordovician of the... Read Post
What triggers a mass extinction? Habitat loss and tropical cooling were once to blame
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