crossopterygii Meaning, Definition & Usage

  1. noun fishes having paired fins resembling limbs and regarded as ancestral to amphibians
    subclass Crossopterygii.

WordNet

Cros*sop`te*ryg"i*i noun plural
Etymology
NL., fr. Gr. tassels, a fringe + , dim. of wing, fin.
Definitions
  1. (Zoöl.) An order of ganoid fishes including among living species the bichir (Polypterus). See Brachioganoidei.

Webster 1913