Cenozoic : 1 of 1

    CENOZOIC : Age of Mammals
  CENOZOIC : Age of Mammals
The Cenozoic is the most recent of the three major subdivisions of animal history. The other two are the Paleozoic and Mesozoic. The Cenozoic spans only about 65 million years, from the end of the Cretaceous and the extinction of non-avian dinosaurs...

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