13 янв 247844445 г. до нашей эры - Permo-Triassic Extinction

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largest extinction known; 95% of all species and about 60% genera died out; cause might have been global cooling, volcanic eruptions or a decrease in the continental shelf area during the formation of Pangaea. No dinosaurs but many amphibians and some reptiles. Corals appeared and ammonites recovered.

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