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Re: Jouve's and Tacquet's Ctenochasma sp.
Quoting david peters <email@example.com>:
> Stephane JouvÃ© asked that I post this letter to the dinosaur list.
> With all honors, I do so now without comment, other two preliminary notes:
> 1) a phylogenetic analysis of every decent specimen in the inventory of the
> Pterosauria reveals that that the Pterodactyloidea is paraphyletic,
Er, you mean polyphyletic.
> separate origins for the Ctenochasmatoidea, etc. and the Azhdarchidae, etc.
> from various Dorygnathus specimens; and the Cycnorhamphidae +
> Ornithocheirid[ae], etc. and Pterodactylidae + Germanodactylidae etc.
> etc. from various Scaphognathus (themselves derived from basal Dorygnathus).
Paraphyletic is what _Dorygnathus_ and _Scaphognathus_ would be, under this
And let me express my amazement (and skepticism) that you've been able to prove
that all these higher-level clades are actually descendants of particular,
Department of Linguistics
University of Michigan