Re: [PDF REQUEST] Re: Acrotholus, new pachycephalosaurid from Cretaceous of Canada

[clastic <clastic@verizon.net>]

I would also appreciate the paper

Clair Russell Ossian, PhD
Professor Emeritus, Geology
Tarrant County College
2805 Raintree Drive
Carrollton, TX 75006

972-416-5211
clastic@verizon.net




On 5/8/13 1:07 PM, "Jura" <pristichampsus@yahoo.com> wrote:

> Could someone with access to the paper send me a copy. It would be much
> appreciated.
> 
> 
> 
> Jason
> 
> 
> ----- Original Message -----
>> From: Ben Creisler <bcreisler@gmail.com>
>> To: dinosaur@usc.edu
>> Cc: 
>> Sent: Tuesday, 7 May 2013 12:42 PM
>> Subject: Acrotholus, new pachycephalosaurid from Cretaceous of Canada
>> 
>> From: Ben Creisler
>> bcreisler@gmail.com
>> 
>> 
>> A new paper in Nature Communications:
>> 
>> David C. Evans, Ryan K. Schott, Derek W. Larson, Caleb M. Brown &
>> Michael J. Ryan (2013)
>> The oldest North American pachycephalosaurid and the hidden diversity
>> of small-bodied ornithischian dinosaurs.
>> Nature Communications 4 : Article number: 1828
>> doi:10.1038/ncomms2749
>> http://www.nature.com/ncomms/journal/v4/n5/full/ncomms2749.html
>> 
>> 
>> Taphonomic biases dictate how organisms are represented in the fossil
>> record, but their effect on studies of vertebrate diversity dynamics
>> is poorly studied. In contrast to the high diversity and abundance of
>> small-bodied animals in extant ecosystems, small-bodied dinosaurs are
>> less common than their large-bodied counterparts, but it is unclear
>> whether this reflects unique properties of dinosaurian ecosystems or
>> relates to taphonomic biases. A new, fully domed pachycephalosaurid
>> dinosaur, Acrotholus audeti, from the Santonian of Alberta predates
>> incompletely domed taxa, and provides important new information on
>> pachycephalosaur evolution and the completeness of the ornithischian
>> fossil record. Here we provide the first empirical evidence that the
>> diversity of small-bodied ornithischian dinosaurs is strongly
>> underestimated based on ghost lineages and the high proportion of
>> robust and diagnostic frontoparietal domes compared with other
>> pachycephalosaur fossils. This suggests preservational biases have a
>> confounding role in attempts to decipher vertebrate palaeoecology and
>> diversity dynamics through the Mesozoic.
>> 
>> 
>> Lots of news stories, including:
>> 
>> With video:
>> 
>> http://www.cleveland.com/science/index.ssf/2013/05/cleveland_museum