noun
- The period from about 5, 400 million years ago until the present.
- synonyms: Phanerozoic, Phanerozoic aeon
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). phanerozoic eon. Retrieved September 21, 2026, from http://smartdefine.org/phanerozoic_eon/definitions/1301563 |
| Chicago | WordNet. 2010. "phanerozoic eon" http://smartdefine.org/phanerozoic_eon/definitions/1301563 (accessed September 21, 2026). |
| Harvard | WordNet 2010, phanerozoic eon, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/phanerozoic_eon/definitions/1301563>. |
| MLA | WordNet. "phanerozoic eon" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/phanerozoic_eon/definitions/1301563> |