Re: New in CJES

["heby@libero.it" <heby@libero.it>]

> On 11/17/05, Jaime A. Headden <qilongia@yahoo.com> wrote:
> 
> >  So finally, the "popcorn" centrosaur floating around since SVP 1999 is
> > finally described. And fortunately, it appears to be a divergent species of
> > *Centrosaurus* with some wicked frill ornaments. Jordan Mallon probably has
> > more to say on this critter than I.
> 
> Other than "chasmosaurines are cooler" I don't have much to say that
> isn't already said in the paper.  Nothing unpredictable, here.  Just
> another damn cool (and old!) ceratopsid.

Just a comment: in this paper Ryan mentioned the fact that MOR 492 could belong 
to "Styracosaurus" ovatus. Mor 492 was the so called "Transictional taxon A" in 

_Horner, J.R., Varricchio, D.J., and Goodwin, M.B. 1992. Marine
transgressions and the evolution of Cretaceous dinosaurs. Nature n° 358
pp:59-61.

I wonder if this taxon could be the true adult morph for USNM 14765 and 
Brachyceratops montanensis....if so, its inclusion within the genus 
Styracosaurus would appear in doubt.
Again, Mor 692 is no longer associated with Avaceratops lammersi (although Mor 
462 may eventually turn out to be the adult form of Avaceratops), leaving this 
centrosaurine without a "face" (the holotype lack completely the skull roof).


Cheers,

Lukas Panzarin