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Re: Archosaur Origins...was:MESENOSAURUS ERRATA.
George Olshevsky (email@example.com) wrote:
<I see nothing contradictory in the system I outlined. What could be simpler?
If it's more closely
related to modern birds than to any other animals, why not call it a bird (or,
if you like, bird
I see this is an aesthetic statement, so perhaps we should persue this ... no
the thousands of them) would agree or accept calling *Titanosaurus* a bird. It
isn't, in any sense
of the word, which is fairly limited. Typically, taking an animal like
*Heterodontosaurus* and a
pigeon *Columba*, one can easily tell down to the first grader and the
collegiate professor of
law, which one is a bird. This is less stable when we pick *Velociraptor* and
*Columba*, but it is
not as similar to *Diplodocus* and *Columba*. Whether one person would want to
rename this Aves
based on some "simpler" way of providing a stem-based system, based only on
living groups, is
inherently unstable and prone to dragging the vernacular with it, as you
express to anticipating.
I cannot see this as a valid system based on an apparently aesthetic-driven
groups, and using the names for these most inclusive groups as vernacular-laden
terms. If so, then
use the easthetically pleasing Thecodontia again? Just give it a firmer
Jaime A. Headden
Where the Wind Comes Sweeping Down the Pampas!!!!
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