Scientists have discovered a new species that co-existed with dinosaurs. The monstersaurian, named 'Goblin Prince' from JRR Tolkien's 'The Hobbit', was a "very large animal", three feet tip to tail, maybe even bigger than that, depending on the length of the tail and torso, said Hank Woolley, paleontologist at the Natural History Museum of Los Angeles County's Dinosaur Institute.