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250 million years ago, toxic coal ash caused a mass extinction

One of the biggest episodes of mass extinction may have been caused 250 million years ago because of toxic ash resulting from burning coal. In the current Nature Geoscience, a team led by Stephen Grasby of the Geological Survey of Canada—Calgary, report evidence the eruption of the Siberian volcanoes torched massive

New species of extinct turtle found in Columbian coal mine

A new fossil turtle species has been found in Columbia's Cerrejón coal mine. About as thick as a standard dictionary, this turtle's shell may have warded off attacks by the Titanoboa, thought to have been the world's biggest snake, and by other, crocodile-like creatures living in its neighborhood 60 million

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