Re: Ptero fuzz distribution?

[jrc <jrccea@bellsouth.net>]

It has never been demonstrated that these are not post-mortem disattached 
actinofibrils or other structures.  There is presently no evidence that I am 
aware of that indicates that they are hair-like structures (structures with 
function similar to that of hair, whatever their actual makeup).

Jim

----- Original Message ----- 
From: "Jaime A. Headden" <qilongia@yahoo.com>
To: <dinosaur@usc.edu>
Sent: Wednesday, July 26, 2006 2:30 PM
Subject: Re: Ptero fuzz distribution?


>  *Sordes*, *Jeholopterus*, and Lü's ctenochasmatid, *Beipiaopterus*, all 
> have
> wing membranes with what appear to be fine, short, repeating hairs that 
> cover
> the membranes. These membranes being structurally different than bats' 
> should
> not force comparisons to the ways bat wings work or operate, though bat 
> wings
> also do have hairs on them.