noun
- Fishes having paired fins resembling limbs and regarded as ancestral to amphibians.
- synonyms: subclass Crossopterygii
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). crossopterygii. Retrieved September 22, 2026, from http://smartdefine.org/crossopterygii/definitions/1200253 |
| Chicago | WordNet. 2010. "crossopterygii" http://smartdefine.org/crossopterygii/definitions/1200253 (accessed September 22, 2026). |
| Harvard | WordNet 2010, crossopterygii, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/crossopterygii/definitions/1200253>. |
| MLA | WordNet. "crossopterygii" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/crossopterygii/definitions/1200253> |