As for integument, recall that Unwin (2000) found Sharovipteryx is characterized by "the presence of long, thin, closely-packed fibres within the membranes that exhibit a striking degree of similarity to the wing-fibres (aktinofibrillae) of pterosaurs", which
seems about as unusual to converge as feathers of the pterosaur/Tianyulong level are.
Mickey Mortimer
From: Yazbeck, Thomas <yazbeckt@msu.edu>
Sent: Friday, September 11, 2020 9:45 PM To: Mickey Mortimer <mickey_mortimer111@msn.com>; dinosaur-l@usc.edu <dinosaur-l@usc.edu>; Tyler Greenfield <tgreenfield999@gmail.com> Subject: Re: [dinosaur] Bat flight evolution + dolphin skull shape (free pdfs) I agree Mickey. Tanystropheus was recently reexamined and our understanding of that genus has completely shifted. IIRC, the three taxa you mentioned have all been slotted into Prolacertiformes at least once, but that taxon as we know it has been completely
busted apart. Do drepanosaurs, tanystropheids, Longisquama, Sharovipteryx, etc. have anything to do with each other at all? I suppose some of them could be closer to the pterosaur-dinosaur group, although I think the evidence for Pterosauria s.l. and Dinosauromorpha
forming a clade is overwhelming, especially with new knowledge about these groups' integument gathered since 2001.
Also Peters' paleo-artwork (in books from the 80s and 90s) is in my opinion some of the greatest ever done. No amount of subsequent bad science can ever tarnish it in my opinion.
Thomas Yazbeck
From: Mickey Mortimer <mickey_mortimer111@msn.com>
Sent: Friday, September 11, 2020 9:34 PM To: Yazbeck, Thomas <yazbeckt@msu.edu>; dinosaur-l@usc.edu <dinosaur-l@usc.edu>; Tyler Greenfield <tgreenfield999@gmail.com> Subject: Re: [dinosaur] Bat flight evolution + dolphin skull shape (free pdfs)
In all fairness, that was before Peters became a crackpot/troll, and the lack of any modern engagement with Longisquama (besides the parafeathers), Cosesaurus or Sharovipteryx is a genuine problem he continues to be correct about. I still think such a relationship
is plausible.
Mickey Mortimer
From: dinosaur-l-request@mymaillists.usc.edu <dinosaur-l-request@mymaillists.usc.edu> on behalf of Tyler Greenfield <tgreenfield999@gmail.com>
Sent: Friday, September 11, 2020 4:38 PM To: Yazbeck, Thomas <yazbeckt@msu.edu>; dinosaur-l@usc.edu <dinosaur-l@usc.edu> Subject: Re: [dinosaur] Bat flight evolution + dolphin skull shape (free pdfs) Anderson stated on Twitter that she wasn't aware of the problems with Peters' work when she wrote the paper. This is understandable as she's not an archosaur researcher.
On Fri, Sep 11, 2020 at 6:34 PM Yazbeck, Thomas <yazbeckt@msu.edu> wrote:
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