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Re: Removing segnosaurs from ...
> It would probably be a lot easier for the pinched metatarsal III of the
> arctometatarsalian pes to evolve a second or third time than for the
> tetradactyl prosauropod-like pes to re-evolve from the functionally tridactyl
> theropod pes. ;-)
I seem to remember that the herrerasaurs had a tetradactyl foot.
Is this correct? I suggest that a seperate descent from the
herrerasaurs is another possiblity that needs to be considered
The peace of God be with you.