Pleistocene

  1. Adjective.  (geology) Of a geologic epoch within the Neogene period from about 1.7 million to 11,000 years ago; marked by the evolution of man, and the extinction of the large mammals.
  2. Proper noun.  (geology) The Pleistocene epoch.

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This entry was last updated on RefTopia from its source on 3/20/2012.