'Crossopterygii' definitions:
Definition of 'Crossopterygii'
From: WordNet
noun
Fishes having paired fins resembling limbs and regarded as ancestral to amphibians [syn: Crossopterygii, subclass Crossopterygii]
Definition of 'Crossopterygii'
From: GCIDE
- Crossopterygii \Cros*sop`te*ryg"i*i\ (kr?s-s?p`t?-r?j?-?), n. pl. [NL., fr. Gr. ??? tassels, a fringe + ?????, dim. of ???? wing, fin.] (Zool.) An order of ganoid fishes including among living species the bichir (Polypterus). See Brachioganoidei. [1913 Webster]