Crossopterygii

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [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]



From WordNet (r) 2.0 [wn]:

  Crossopterygii
       n : fishes having paired fins resembling limbs and regarded as
           ancestral to amphibians [syn: {subclass Crossopterygii}]