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Re: paleontolgist, dinosaur
From: John Bois <jbois@umd5.umd.edu>
> I'm not sure what the Montana data says about that. Either they were
> already gone from there at the end, or Archibald didn't include them.
> Isn't it generally accepted though, that, except for a few stragglers,
> this lineage was directly outcompeted by birds?
>
The only pterosaur I know of from the Late Maastrichtian of the
American midwest is _Quetzalcoatlus_, and it is not known from
as far north as Montana.
[A few fragments have sometimes been refered to pterosaurs, but
such fragments are often indeterminate between small dinosaurs, birds
and pterosaurs, so they are useless in this context].
swf@elsegundoca.ncr.com sarima@ix.netcom.com
The peace of God be with you.