Asteroid breakup linked to the Great Ordovician Biodiversification Event

Schmitz, Birger; Harper, David A. T.; Peucker-Ehrenbrink, Bernhard; Stouge, Svend; Alwmark, Carl; Cronholm, Anders; Bergström, Stig M.; Tassinari, Mario; Xiaofeng, Wang

doi:10.1038/ngeo.2007.37

Asteroid breakup linked to the Great Ordovician Biodiversification Event

The Great Ordovician Biodiversification Event coincides ~470 million years ago with the break-up of a large asteroid and the resultant frequent bombardment of Earth with asteroid fragments.