One of the most dynamic, transformative, and potentially dangerous features in North America is also responsible for some of the continent's most amazing fossil deposits. It's a supervolcano we now call Yellowstone.

Originally released by Knowledgemotion, 2018. Streaming video file encoded with permission for digital streaming by Infobase on February 21, 2020.

How a Supervolcano Made the Cenozoic's Coolest Fossils (9:38); .