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Ancient Rhinos' Demise Linked to Yellowstone Eruption

4/12/2025

23 5

Summary

Story summary

Ancient rhinos, known as Teleoceras major, roamed the lush landscapes of North America's Midwest 12 million years ago, thriving in herds near waterholes. A catastrophic eruption from the Yellowstone supervolcano led to their mass demise. Isotopic analysis of their fossilized teeth reveals they were permanent residents, not just seasonal visitors.

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Story summary

Ancient rhinos, known as Teleoceras major, roamed the lush landscapes of North America's Midwest 12 million years ago, thriving in herds near waterholes. A catastrophic eruption from the Yellowstone supervolcano led to their mass demise. Isotopic analysis of their fossilized teeth reveals they were permanent residents, not just seasonal visitors.