Paleontologists have described a new genus and species of pachycephalosaurid dinosaur from five fossil specimens found in the Late Cretaceous Two Medicine Formation of Montana, the United States. Life reconstruction of Brontotholus harmoni. Image credit: Connor Ashbridge / CC BY 4.0. The new dinosaur species lived in North America during the Late Cretaceous epoch, some 75 million years ago. Dubbed Brontotholus harmoni, the ancient herbivore was approximately...
