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Re: another question
Jack Conrad wrote:
<I was wondering if there is any possibility of _Triceratops_,
_Brachyceratops_, and _Avaceratops_ being related based on the solid
frill. I realize that the remains are fairly poor for the latter two.>
There is a distinct similarity between *Triceratops* and
*Torosaurus*, mostly the general appearance of the face, horns, nasal
fossa or whatever it's called, and frill, with Toro having small
fenestrae and a very smooth margin, kinda like some specimens of
Trike; in fact, the most similarity I can see is between the heads of
*Diceratops/Triceratops hatcheri* and *Torosaurus latus*. Andy Farke
may prove me wrong, as he seems to me the most ardent worker on Toro I
can find.
*Brachyceratops* and *Adaceratops* definately compare, if _Horned
Dinosaurs_ (Dodson, 1996) can be believed, and I have no reason to
distrust him. They are basal Centrosaurinae, and Toro/Trike may be
advanced Chasmosaurinae. Some skulls of Trike are very similar to
centrosaurines, like *T. "obtusus"* and *T. "serratus"*, so they may
be basal, and the semi-solid (very thin on both trikes and Brachy and
Ada) mid parietals are quitre similar.
Anyway, my thoughts on the matter,
==
Jaime A. Headden
Qilong, the website, at:
http://members.tripod.com/~Qilong/qilong.html
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All comments and criticisms are welcome!
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