Major volcanic eruption paved the way for the rise of the dinosaurs (IMAGE)
Caption
The world at the end of the Triassic Period, about 200 million years ago. The Atlantic Ocean had not opened yet. Activity in the central volcanic region triggered the end-Triassic mass extinction. The crosses (×) indicate the current location where sedimentary rocks were collected for this study, corresponding to Austria and the UK
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Provided by Masayuki Ikeda, Associate Professor of the University of Tokyo
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