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Topic: The First Mass Extinction Event Explained: End-Ordovician (Read 40 times) previous topic - next topic

The First Mass Extinction Event Explained: End-Ordovician

The First Mass Extinction Event Explained: End-Ordovician

[html]How long did the Ordovician period last, and what caused the Ordovician mass extinction to wipe out 85 percent of life on earth 445 million years ago?[/html]

Source: The First Mass Extinction Event Explained: End-Ordovician (http://ht**://www.discovermagazine.c**/the-sciences/the-first-mass-extinction-event-explained-end-ordovician)