Re: large fossil birds

[Patrick Norton <ptnorton@suscom-maine.net>]

From: "Michael Habib" <mhabib5@jhmi.edu>

> The only catch is that azhdarchids didn't have particularly long wings 
> relative to their size.>

And my point is that the two groups are not directly comparable, given the 
different evolutionary constraints they inherited. The physics of flight 
apply equally to both, of course, but they each had to work with what they 
had. It's my belief that these evolutionary constraints resulted in 
different physical limits on size for the two groups.

PTN