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Re: other questions

To: dinosaur@usc.edu
Subject: Re: other questions
From: "Chris Collinson" <chris_collinson@hotmail.com>
Date: Sun, 16 Feb 2003 14:30:54 +0000
Reply-to: chris_collinson@hotmail.com
Sender: owner-dinosaur@usc.edu


, but Avaceratops is controversial.
Penkalski and Dodson (1999) placed it outside Ceratopsidae, but Forster
(2002) placed it in Centrosaurinae.

Is it likely that Avaceratops represents a possible ancestor to Triceratops, being the only other ceratopsian without parietal fenestrae? And is it lammersi or lammersorum, I've seen both.

-Chris

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