Press How a Mass Extinction Driven by Ancient Volcanoes Led to the Age of the Dinosaurs Ancient Oxygen Spike CoINCIDED WITH MASSIVE GLOBAL EXTINCTion How life (barely) survived Earth’s greatest extinction event UW research backs up ongoing efforts to protect the enigmatic Nautilus Toxic and oxygen-starved oceans caused mass extinction 200 million years ago Before The End: Scientists Find Evidence Of Extinctions Prior To Impact Event That Killed The Dinosaurs Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading...