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Re: Important feathered dinosaurs
In a message dated 12/8/1999 1:39:09 PM Pacific Standard Time, Dinogeorge
> Although the Cretaceous can be said to have a "series" of birds (though
> hardly smooth!), certainly the Jurassic cannot--there's only one:
> Archaeopteryx (not counting possible different species within the genus,
> from the same locality).
Um, OK, but the Jurassic and Cretaceous together can be said to have a series
of birds. What I meant by a "smooth" series is that we can trace the
development of many features of bird hands, heads, feet, jaws, backs, hips,
etc., in _Archaeopteryx_, _Confuciusornis_, Enantiornithes,
Hesperornithiformes, Ichthyornithiformes, and Neornithes.
_Protoavis_ is purported to have features more advanced even than many
Cretaceous birds, and unless better fossils of it appear and corroborate this
assessment, I will continue to have my doubts that it is anywhere on the main
line of bird evolution.