Crossopterygian

2 definitions found

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

  Crossopterygian \Cros*sop`ter*yg"i*an\ (kr?s-s?p`t?r-?j?-an), a.
     (Zool.)
     Of or pertaining to the Crossopterygii. -- n. One of the
     Crossopterygii.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  crossopterygian
       n : any fish of the order Crossopterygii; most known only in
           fossil form [syn: {lobefin}, {lobe-finned fish}]