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RE: Did dinosaur wings evolve for breeding display?

  Not responding to Scott's post, but adding to what he said, it should be 
remembered that right now, there is no evidence that the structures on 
*Longisquama*'s mainslab are paired. None of the slabs that preserved only 
these structures showed paired elementals, just a few that were skewed and 
overlapped, but the bases were isolated and not overlapping, and were of 
differing lengths. This argues that the structures, if they were part of 
*Longisquama*'s anatomy, were singular and likely on the midline.


Jaime A. Headden

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