English

Adjective

crossopterygian ‎(not comparable)

1. (zoology) Of or pertaining to the Crossopterygii, an infraclass of bony fish. [from 19th c.]
   • 2000, Richard Fortey, ‘No Such Thing as a Fish’, London Review of Books, vol. 22 no. 13:

     One consequence was that the crossopterygian fishes (distantly related to the famous ‘living fossil’ coelacanth Latimeria) were dethroned from their privileged position as ancestors.

Noun

crossopterygian ‎(plural crossopterygians)

1. (zoology) One of the Crossopterygii.