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Re: "Thecodonts" (was RE: On the subject of mysterious absences...The Answer)

This may be an entirely moot
discussion, but I'm fairly certain in that period, "silesaurs" would
have probably been lumped into Ornithischia based on some (likely
convergent!) similarities.  :-)

And then used to argue that Saurischia is descended from Ornithischia rather than the other way around!

Or perhaps they'd have been called prosauropods simply for being "primitive dinosaurs".