noun
- From 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). missippian period. Retrieved September 25, 2026, from http://smartdefine.org/missippian_period/definitions/1295371 |
| Chicago | WordNet. 2010. "missippian period" http://smartdefine.org/missippian_period/definitions/1295371 (accessed September 25, 2026). |
| Harvard | WordNet 2010, missippian period, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/missippian_period/definitions/1295371>. |
| MLA | WordNet. "missippian period" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/missippian_period/definitions/1295371> |