A new dome-headed dinosaur species was discovered in Montana, a study released this month shows.

Researchers discovered the fossils of Brontotholus harmoni, a dome-headed dinosaur in Montana, according to the paper published Oct. 9 in the Zoological Journal of the Linnean Society.

It’s the first pachycephalosaurid from the Late Cretaceous period to be found in the Two Medicine Formation in Glacier County, Montana.

The late Cretaceous period is the final period of the Age of Dinosaurs, which lasted from about 100 to 66 million years ago and ended with the mass extinction of non-avian dinosaurs.

What kind of dinosaur was discovered?

The dinosaur was part of the pachycephalosauridae family and lived about 75 million years ago, the report states. Fossils from the dinosaur were found in

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