1. 
   Sarcopterygii
   (from the article `Life Sciences`) A significant new transitional fossil, Tiktaalik roseae, was described in April 2006. The fossil, discovered in Late Devonian deposits of the ... ...lack choanae; no fleshy base to paired fins; no internal nares; air sacs usually function as swim bladder; skeleton ...
   Found op http://www.britannica.com/eb/a-z/s/31
   
   
2. 
   Sarcopterygii
   The Sarcopterygii ˌsɑrkɒptəˈrɪdʒi.aɪ or lobe-finned fishes (from Greek σαρξ sarx, flesh, and πτερυξ pteryx, fin) – sometimes considered synonymous with Crossopterygii ("fringe-finned fish", from Greek κροσσός krossos, fringe) – constitute a clade (traditionally a class ...
   Found op http://en.wikipedia.org/wiki/Sarcopterygii
   
   

Tip: double click on a word to show its meaning.