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Re: other questions

, 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.


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