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Re: Extinction Question and a Thank You!
On Sun, 6 Feb 2005 00:26:53 -0800, T. Michael Keesey <email@example.com> wrote:
> The total (or panstem) clade evolved before dinosaurs from their
> common ancestor, but this included many taxa (ornithisuchids,
> aetosaurs, phytosaurs, poposaurids, rauisuchids, sphenosuchids,
> mesosuchids, etc.) which would not be considered crocodylian.
Whoops -- I meant metriorhynchids, not mesosuchids (which are
rhynchocephalian lepidosaurs). (Thanks to HP Headden for pointing that
-- Mike Keesey