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Re: Proavis and Glenn Rose footprints
On Fri, 12 Jan 1996, Klaus Richter wrote:
> Could it be an early bird - what means, that birds of today are
> no "dinosaurs" (Bakker) and Archaeopteryx is a sign for convergence
> evolution or could it be the first and not successfull try of the
> archosaurs to fly, and Archaeopteryx is clearly one of the first
> birds ?
Since we now have a good developmental series from _Archaeopteryx_ to
modern birds, including _Sinornis_, _Iberomesornis_, _Ambiortus_, and the
Odontornithes, in order of increasing "birdness", while we have NOTHING
linking _Protoavis_ to modern birds, it looks unlikely that _Protoavis_
was a true bird. It does, however, have some very birdlike features.
> What's the matter with these "human" footprints. Are they made by
> creatonists ? It's obvious that no humans existed in the mesocoic.
> Thanks for any good information
> Klaus Richter
Yes, it does look like a good number of the Mesozoic "human" footprints
were instances where a theropod put its heel down on the ground and the
toes pressed too lightly to make an impression.
Pacific Lutheran University
Tacoma, WA, USA