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Noun: Palaeocene  'pey-lee-u,seen or 'pa-lee-u,seen
Usage: Brit, Cdn (US: Paleocene)
  1. From 63 million to 58 million years ago; appearance of birds and earliest mammals
    - Paleocene, Paleocene epoch

Type of: epoch

Part of: Tertiary, Tertiary period

Encyclopedia: Palaeocene