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Re: PRISTICHAMPSIDS etc
>Incidentally, Rossman has also argued that _Quinkana_ is not a
>mekosuchin but a pristichampsid (I'm following Willis there in having
>mekosuchins as a subfamily-level group of crocodylines and following
>Rossman in regarding pristichampsids as a family-level taxon).
Rossmann makes this argument from a purely functional standpoint; every
phylogenetic analysis done to date on Quinkana makes it a mekosuchine.
I've seen Pristichampsus, and I've seen Quinkana - Paul Willis is right.
Quinkana is not a pristichampsine, but a mekosuchine. Paul regards
mekosuchines as crocodyloids, but not necessarily crocodylids (or
crocodylines). They come out as crocodylids in my analyses, but just
barely - the difference between Paul's tree and mine is one node.
You're still using Linnean ranks?
Christopher A. Brochu
Department of Geology
1400 S. Lake Shore Drive
Chicago IL 60605