What is the meaning of eocene epoch?

noun

  • From 58 million to 40 million years ago; presence of modern mammals.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). Eocene epoch. Retrieved September 22, 2026, from http://smartdefine.org/eocene_epoch/definitions/1273170
ChicagoWordNet. 2010. "Eocene epoch" http://smartdefine.org/eocene_epoch/definitions/1273170 (accessed September 22, 2026).
HarvardWordNet 2010, Eocene epoch, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/eocene_epoch/definitions/1273170>.
MLAWordNet. "Eocene epoch" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/eocene_epoch/definitions/1273170>