Lesser-Known Wonders: 30 Fascinating Dinosaurs You’ve Probably Never Heard Of

Regaliceratops

Nicknamed “Hellboy” for the difficulty of excavating it, this Canadian horned dinosaur sported a crown-like frill with large triangular plates. Named in 2015, Regaliceratops combined features from different ceratopsian families in unexpected ways. The Late Cretaceous plant-eater shows that even among well-known dinosaur groups, surprising new varieties still turn up nearly a century after the first horned dinosaurs were found.