Asteroid breakup linked to the Great Ordovician Biodiversification Event

Paul bristolia at yahoo.com
Thu Mar 27 09:59:24 EDT 2008

Schmitz, B., David A. T. Harper, Bernhard Peucker-Ehrenbrink, Svend
Stouge, Carl Alwmark, Anders Cronholm, Stig M. Bergström, Mario
Tassinari & Wang Xiaofeng, 2008, Asteroid breakup linked to the Great
Ordovician Biodiversification Event. Nature Geoscience. vol. 1, no. 1,
pp. 49-53.

http://www.nature.com/ngeo/journal/v1/n1/abs/ngeo.2007.37.html

Yours,

Paul H.