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Triassic - Jurassic Extinction



Seeking a Pot of Geological Gold by Aaron L. Gronstal 
Astrobiology, December 15, 2011 
http://astrobio.net/index.php?option=com_expedition&task=detail&id=4400&type=story
 
http://www.spacedaily.com/reports/Seeking_a_Pot_of_Geological_Gold_999.html 

PDF file at 
http://astrobio.net//makepdf.php?id=4400&component=news

A related article is:

The Mass Extinction that Left the Dinosaurs Standing
Adapted from a University of Washington press release
December 21, 2011.
http://astrobio.net/index.php?option=com_expedition&task=detail&id=114
http://astrobio.net/includes/html_to_doc_execute.php?id=114&component=news.
http://nai.nasa.gov/news_stories/news_detail.cfm?ID=156

Yours,

Paul V. Heinrich
Baton Rouge, Louisiana