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Re: New paper on the origin and early evolution of dinosaurs
On Sun, Nov 8, 2009 at 7:39 PM, Tim Williams <email@example.com> wrote
> It is therefore possible that pterosaurs might have branched off quite late,
> around the same time as the dinosaurs. In fact, maybe pterosaurs are
> themselves dinosaurs. I'm going to stick my neck out here and say that I
> wouldn't be at all surprised if future analyses show pterosaurs to be nested
> inside Saurischia. It would mean that the axial air sacs (and flow-through
> respiratory system) shared by saurischians and pterosaurs have a single
> origin. It's a crazy idea, I know. But not *that* crazy.
As well as filamentous integumentary structures....