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Re: other questions
Quoting Chris Collinson <firstname.lastname@example.org>:
> 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.
I'd say it's unlikely, as _Avaceratops_ retains a number of primitive
characters lost in _Triceratops_ and the other chasmosaurines.
If I have the story right, Dodson originally coined the name as _Avaceratops
lammersi_. But he actually intended to name the animal for the Lammers
*family*, and not just one (male) Lammers, so it really should be
_lammersorum_. Dodson didn't like having his name screwed with and so
continues to use _lammersi_.
Department of Linguistics
University of Michigan