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New Horned Dinosaur Species Used Horn Frills to Drive Diversity and Evolution

Discovery of Lokiceratops rangiformis, a 11,000 pound dinosaur, is helping rewrite the story of dinosaur evolution.

ByPaul Smaglik
Lokiceratops rangiformis gen. et sp. nov. (Ceratopsidae: Centrosaurinae) from the Campanian Judith River Formation of Montana reveals rapid regional radiations and extreme endemism within centrosaurine dinosaursCredit: Andrey Atuchin

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Move over Triceratops, there’s a new horn-faced dinosaur in town.

Researchers announced the fossil of an herbivore dinosaur with one of the largest, most ornate “frills” on its skull and two blade-like horns protruding from it, in the scientific journal PeerJ.

Those features inspired its name, Lokiceratops rangiformis, which means “Loki’s horned face that looks like a caribou.” Lokiceratops appeared at least 12 million years earlier than its famous cousin Triceratops and at 22 feet long and 11,000 pounds, was the largest horned dinosaur of its time.

As cool as “Loki’s” name, appearance and relationship to Triceratops is (and the authors do, in fact, acknowledge that coolness) the bigger picture may prove even more fascinating.

The new fossil, excavated in northern Montana just a few miles from the U.S.-Canada border, represents just one data point of the biggest collective analysis of horned dinosaurs ever conducted.

Collaborations between the National Science ...

  • Paul Smaglik

    Before joining Discover Magazine, Paul Smaglik spent over 20 years as a science journalist, specializing in U.S. life science policy and global scientific career issues. He began his career in newspapers, but switched to scientific magazines. His work has appeared in publications including Science News, Science, Nature, and Scientific American.

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