noun
- Approximately the last 63 million years.
- synonyms: Cenozoic, Age of Mammals
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cenozoic era. Retrieved September 21, 2026, from http://smartdefine.org/cenozoic_era/definitions/1264231 |
| Chicago | WordNet. 2010. "cenozoic era" http://smartdefine.org/cenozoic_era/definitions/1264231 (accessed September 21, 2026). |
| Harvard | WordNet 2010, cenozoic era, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cenozoic_era/definitions/1264231>. |
| MLA | WordNet. "cenozoic era" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/cenozoic_era/definitions/1264231> |