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Re: Theropod "migrations"
On Sun, 25 Apr 1999 Dinogeorge@aol.com wrote:
> In a message dated 4/25/99 12:26:25 PM EST, firstname.lastname@example.org writes:
> << I thought _Turanoceratops_ was just outside Ceratopsidae. If it is a
> ceratopsid, is it a ceratopsine or a centrosaurine? >>
> Inside Ceratopidae but probably outside either Centrosaurinae or Ceratopinae.
> But since it had supraorbital horns, it might wind up inside Ceratopinae,
> too, after the smoke clears. Particularly if Ceratopinae is stem-based.
I thought Ceratop[s]idae was node-based, with Ceratop[s]inae
(=Chasmosaurinae) and Centrosaurinae (=Pachyrhinosaurinae) as stem-based
clades within, meaning that if it's not a ceratop[s]ine or a
centrosaurine, it's not a ceratop[s]id. I have it as a non-ceratopsid
ceratopsomorph, just above _Montanoceratops_.
--T. Mike Keesey <email@example.com>
THE DINOSAURICON <http://dinosaur.umbc.edu>