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Re: appearance of flying raptors vs. flying squirrels


I doubt there was anything hawk or eagle like back in the Jurrassic, so I doubt 
they forced Volaticotherium into a nocturnal lifestyle.
I don't think anyone has said whether or not it was nocturnal (though eye 
socket size could provide a strong suggestion perhaps?).

I don't see pterosaurs filling this role either, though I could be wrong.

--- On Mon, 6/14/10, B tH <soylentgreenistrex@yahoo.com> wrote:

> From: B tH <soylentgreenistrex@yahoo.com>
> Subject: appearance of flying raptors vs. flying squirrels
> To: dinosaur@usc.edu
> Date: Monday, June 14, 2010, 6:15 AM
> I have found various scattered info
> on the 'net about the time-line of hawks/eagles/falcons, but
> would like your more knowledgeable
> opinions.   Did flying raptors appear prior
> to the "flying" non-bat mammals - or do you think that the
> appearance of the raptors forced the flying mammals into a
> nocturnal life-style? [Of course, owls are still a problem
> for them.]