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David Marjanovic 27.April 2002 wrote:
At first I'd say "too bad for Reisz & Laurin".
I can't really imagine a coronoid reevolving. Well, I'll try to find some more
figures, but figures of the insides of lower jaws are hard to get. What is
Mesosuchus? Do you mean Mesosaurus?
Mesosuchus Browni is the most plesiomorphic member
of rhynchosaurs (scaphonyx & Co.), and is the only one Archosauromorph of
which I was able to find description of the internal jaw.
Also mesosaurus, seems to have only one
coronoid (Modesto), like millerettids (Gow), and protorothyridids (Carroll), and
the rest of sauropsids.
It seems that the presence of two coronoids is a
character present only in synapsids and dinosaurs.
Alberto Arisi
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