noun
- Fossil gymnospermous trees or climbing plants from the Devonian: seed ferns.
- synonyms: Cycadofilicales, order Cycadofilicales, Lyginopteridales
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). order lyginopteridales. Retrieved October 1, 2026, from http://smartdefine.org/order_lyginopteridales/definitions/1299108 |
| Chicago | WordNet. 2010. "order lyginopteridales" http://smartdefine.org/order_lyginopteridales/definitions/1299108 (accessed October 1, 2026). |
| Harvard | WordNet 2010, order lyginopteridales, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/order_lyginopteridales/definitions/1299108>. |
| MLA | WordNet. "order lyginopteridales" 23 October 2010. Web. 1 October 2026. <http://smartdefine.org/order_lyginopteridales/definitions/1299108> |