[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Mesozoic birds made insects shrink
I'll look up the take-off and landing info later. What about the speed of
flight in pter. compared to birds? I don't doubt that they were warm-blooded,
but it seems that pterosaurs would be less agile in flight, and very
voulnerable on the ground. Wouldn't feathers be better (more durable?) than
skin? Wouldn't a pterosaur with a torn wing be SCREWED, i.e. theropod bait?
Still, I suspect that the advancement of birds would cause at least a few
problems for the flying reptiles.
----- Original Message -----
From: "David Marjanovic" <email@example.com>
Sent: Tuesday, June 5, 2012 3:32:31 PM
Subject: Re: Mesozoic birds made insects shrink
> I meant to say that they were not as efficient as birds
But what gives you _that_ idea?
> What about the intelligence of the pterosaurs?
Good question. Very difficult to answer from a few braincase endocasts.
> And weren't pterosaurs bad at taking off/landing?
No. That has been discussed on this list in great detail.
> With their thicker integument, I would venture to say that
> birds were able to survive in colder regions than pterosuars could.
1) Are you sure it's thicker? 2) What colder regions? Pterosaurs did fine even
in temperate Liaoning.
> And as far as I know, Pterosauria can only belong to one class:
Even if you insist on having classes, alternatives are available. You could
give them their own class (has been done), or you could give something like
Ornithodira class status (has also been done -- "Endosauropsida")...