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Re: Yonghesuchus, was Shuvosaurus

I wrote:

The Proterochampsidae lies outside of whatever is left of the
Archosauriformes. You'll find they nest in a continuum from Youngina -
Choristodera - Proterochampsidae - Doswellia  - Parasuchia.

That's a very strange assemblage. Are you sure you've included all proposed
apomorphies of Archosauriformes as characters in your analysis?

Perhaps -- perhaps -- worse yet: if you don't find Lepidosauromorpha and Archosauromorpha as sistergroups to the exclusion of *Youngina*, then you need to postulate that the "diapsid" middle ear evolved twice.