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Re: pdf request
On Tue, Jun 12, 2012 at 11:44 AM, <firstname.lastname@example.org> wrote:
> So does that mean that the anapsid condition was NOT the ancestral condition
> of the amniotes?
That is one possibility they suggest. Alternately, Mesosaurus may have
evolved its lower temporal fenestra convergently. More work is being
done to clarify.
> Sounds kind of strange to me because the first tetrapods lacked a t.f.
There's a pretty big distance between the first tetrapods and the
> The mesosaurs are definately mysterious-why do they seem to appear out of
Fossil record's incomplete, especially that far back in time.
T. Michael Keesey