Dinosaurs were not the only life to go extinct and leave a trail to their history. This webcast presents a paleobotanist who has studied extinction at a site in North Dakota. He discusses mass extinction. [29:16]

Concepts

dinosaur extinction, mass extinction

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Additional Tags

mass extinction - solving the dinosaur mystery, q?rius, qrius, qrius: mass extinction - solving the dinosaur mystery, mass extinction fossils

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Classroom Considerations

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