JUNE 9 (Reuters) — Scientists had a heck of a time getting the remarkable fossil of a dinosaur they dubbed “Hellboy” out of the hard limestone along a Canadian River bank where it was entombed for 68 million years, but the diabolic task proved gratifying. The scientists on Thursday (June 4) described one of the most unique horned dinosaurs ever discovered, a beast boasting an exotic set of facial horns and spines around the edge […]