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About: Timeline of Cretaceous–Paleogene extinction event research     Goto   Sponge   NotDistinct   Permalink

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Since the 19th century, a significant amount of research has been conducted on the Cretaceous–Paleogene extinction event, the mass extinction that ended the dinosaur-dominated Mesozoic Era and set the stage for the Age of Mammals, or Cenozoic Era. A chronology of this research is presented here.