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Re: Archaeopteryx running



> This is going off on a tangent, I know...  But one of the reasons why I'm
a
> little uncomfortable with a cursorial origin of avian flight is that the
> hindlimbs of _Archaeopteryx_ are among the *least* cursorial of any
> theropod.

I agree. Chickens, for example, have gigantic ilia in comparison (Archie's
are really tiny), and the muscle mass is tremendous, much more than could be
packed on an Archie. In this respect tyrannosaurs are considerably more
similar to chickens :-)