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Were dinosaur ecosystems continent-sized? (resend)



Resent, this time in plain text... :-)
 
According to this analysis, yes:
 
http://www.mcgill.ca/newsroom/news/item/?item_id=116613
 
 http://www.pnas.org/content/early/2010/04/05/0913645107
 
 A couple of problems right off the top:

1. No faunas from Utah, New Mexico or Texas are included in the dataset. 
2. The upper Maastrichtian Scollard fauna is not included, but the lower-middle 
Maastrichtian Horseshoe Canyon fauna is...
  
It's an interesting coincidence in time this appears a few days after the 
publication of a new pachycephalosaur (_Texacephale_), where the authors 
suggest exactly the opposite scenario: 
http://www.sciencedaily.com/releases/2010/04/100419132406.htm
 
Guy Leahy