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Ancient Dog Footprints Discovered After Yellowstone Supereruption

11/28/2025

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Summary

Story summary

Researchers at the Ashfall Fossil Beds of northeastern Nebraska found ancient dog footprints showing large carnivores followed the Yellowstone supereruption 12 million years ago.
Footprints measure up to 3.2 inches long.
They belong to extinct canids, including Aelurodon taxoides and Epicyon saevus.
Ashley Poust presented the findings at the 2025 Society of Vertebrate Paleontology meeting, with the study pending peer review.

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Story summary

Researchers at the Ashfall Fossil Beds of northeastern Nebraska found ancient dog footprints showing large carnivores followed the Yellowstone supereruption 12 million years ago.
Footprints measure up to 3.2 inches long.
They belong to extinct canids, including Aelurodon taxoides and Epicyon saevus.
Ashley Poust presented the findings at the 2025 Society of Vertebrate Paleontology meeting, with the study pending peer review.