noun
- The period from about 5, 400 million years ago until the present.
- synonyms: Phanerozoic eon, Phanerozoic aeon
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). phanerozoic. Retrieved September 20, 2026, from http://smartdefine.org/phanerozoic/definitions/1249804 |
| Chicago | WordNet. 2010. "phanerozoic" http://smartdefine.org/phanerozoic/definitions/1249804 (accessed September 20, 2026). |
| Harvard | WordNet 2010, phanerozoic, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/phanerozoic/definitions/1249804>. |
| MLA | WordNet. "phanerozoic" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/phanerozoic/definitions/1249804> |