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Re: Mesozoic birds made insects shrink

I would imagine that the pterosaurs had some trouble with bipedal locomotion, 
so no ostrich-like flightless pterosaurs in the "K-T never happened, Cenozoic 
dinosaurs" alternate timeline ;-)

----- Original Message -----
From: "Mike Keesey" <keesey@gmail.com>
To: "Dinosaur Mailing List" <dinosaur@usc.edu>
Sent: Tuesday, June 5, 2012 4:51:30 PM
Subject: Re: Mesozoic birds made insects shrink

On Tue, Jun 5, 2012 at 1:43 PM, Dr Ronald Orenstein
<ron.orenstein@rogers.com> wrote:
> Oddly, the one thing that birds seem to have done better than either 
> pterosaurs or bats is to evolve flightless terrestrial forms - presumably 
> because of the decoupling of the wing mechanisms.

One other thing they did better was get their transitional forms
fossilized -- we're still waiting on prevolant stem-bats and prevolant
non-pterosaurian pterosauromorphs. Would be interested if this were
related somehow to the locomotion differences.

T. Michael Keesey