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Re: Ah ha! That's where therizinosaurs came from
fossil paravians like _Archaeopteryx_ and _Microraptor_ (which
retained a medially-directed hallux)
Oh no. They retain a _cranially_ directed hallux. A medially directed
one is found in *Confuciusornis* (and for instance the kiwis).
Somebody should have a look at *Changchengornis* and the
scansoriopterygids. The latter have a pretty long and fully descended