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Re: Pre-archosaur...was : What came before Eoraptor?
From: T. Mike Keesey <firstname.lastname@example.org>
To: Larry Febo <email@example.com>
Cc: firstname.lastname@example.org <email@example.com>
Date: Friday, April 07, 2000 1:19 PM
Subject: Re: Pre-archosaur...was : What came before Eoraptor?
>I have a couple of cladograms at
>The first is an attempt at a general consensus. The second is based on the
>more heterodox one at Dave Peters' site.
I`m not sure I like either of them. In Dave Peter`s, Prolacertiforms are
grouped under Ornithodirans, but I thought to qualify as Ornithodiran, it
must have an "advanced mesotarsal" ankle, and I thought that prolacertilians
had not yet achieved that feature.