• noun
• synonym
• antonym

• Eocene epoch (noun)
  1. from 58 million to 40 million years ago; presence of modern mammals
• Glacial epoch (noun)
  1. from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution
• Holocene epoch (noun)
  1. approximately the last 10,000 years
• Miocene epoch (noun)
  1. from 25 million to 13 million years ago; appearance of grazing mammals
• Oligocene epoch (noun)
  1. from 40 million to 25 million years ago; appearance of sabertoothed cats
• Paleocene epoch (noun)
  1. from 63 million to 58 million years ago; appearance of birds and earliest mammals
• Pleistocene epoch (noun)
  1. from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution
• Pliocene epoch (noun)
  1. from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals
• Recent epoch (noun)
  1. approximately the last 10,000 years
• epoch-making (adjective)
  1. very important in changing the way people live or the way a society is organized
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