Regaliceratops

It was nicknamed 'Hellboy' because the skull was so hard to dig out of the rock and the horns above its eyes were very small, like the comic book character.14

It was about 5 metres (16 feet) long and weighed around 2 metric tons (2.2 short tons), about as much as a small car.1

It was a plant-eater, like other horned dinosaurs. It lived in a warm, swampy environment with ferns, palms, and ginkgo trees.1

It lived during the Late Cretaceous period, about 68.5 to 67.5 million years ago.1

Its skull was found in 2005 along the Oldman River in southwestern Alberta, Canada, by geologist Peter Hews.1

Yes, it is a close relative of Triceratops, but it had a big nose horn and tiny horns above its eyes, which is the opposite of Triceratops.12