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Re: Tail feathers

Matthew Troutman wrote:

> Based on what it is known about bird flight and the known and
> hypothetical use of the tail during flight, I find it rather perplexing
> that pterodactyloid pterosaurs didn't have a similiar system.  Dave
> Peters has suggested that some of the pterosaur fossils show a
> uropatagium, this could have functioned like a locomotor module.

Dave is right on this.  They did, and it did, assisted by that portion
of the brachiopatagium between the elbow and knee.