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

[Jura <pristichampsus@yahoo.com>]

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