(n.) An extensive genus of fossil ferns; -- so named from the regular comblike arrangement of the leaflets.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Pecopteris. Retrieved September 21, 2026, from http://smartdefine.org/pecopteris/definitions/2042968 |
| Chicago | Webster's. 2011. "Pecopteris" http://smartdefine.org/pecopteris/definitions/2042968 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Pecopteris, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/pecopteris/definitions/2042968>. |
| MLA | Webster's. "Pecopteris" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/pecopteris/definitions/2042968> |