[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Centrosaurus brinkmani, new ceratopsian

I'm not quite sure this has been published yet.  The pdf is not
available on the CJES website, and I know the journal itself has yet
to be published.  Maybe we ought to hold off on this one until it's
official.  (Michael Ryan wasn't even aware of its being circulated.)

Jordan Mallon

BScH, Carleton University
Vertebrate Palaeontology & Palaeoecology

Paleoart website: http://www.geocities.com/paleoportfolio/
MSN Messenger: j_mallon@hotmail.com

On 10/17/05, Tim Williams <twilliams_alpha@hotmail.com> wrote:
> Ryan, M.R. and Russell, A.P. (2005).  A new centrosaurine ceratopsid from
> the Oldman
> Formation of Alberta and its implications for centrosaurine taxonomy and
> systematics.  Can. J. Earth Sci. 42: 1369–1387.
> Abstract: "_Centrosaurus brinkmani_ (sp. nov) is distinguished from
> _Centrosaurus apertus_ by key features of its cranial ornamentation,
> including the shape and orientation of the postorbital horn and parietal
> ornamentation at parietal locus 3, the shape of the parietal ornamentation
> at locus 2, and the possession of accessory parietal ossifications developed
> as short spines on the caudal parietal ramus. This species is restricted to
> the Oldman Formation of southern Alberta and is the oldest ceratopsid
> represented by diagnostic material in Canada. Phylogenetic analysis of the
> Centrosaurinae suggests that the development of spike-like ornamentation at
> the parietal locus 3 parietal locus is inversely related to the development
> of the P1 parietal ornamentation."