Agathaumas is now displayed at the Field Museum in Chicago. It was given its name, which refers to its huge size, by paleontologist Edward Drinker Cope in 1872. It is a nomen dubium, however, and some debate exists to what Agathaumas is. Cope himself originally supposed it to be a type of hadrosaur until O. Marsh described Triceratops in 1889.
Artist Charles R. Knight painted the dinosaur for Cope, creating a fantastic-looking beast, which blended the lengthy facial horns of Triceratops with the spiked frill of the Styracosaurus Dinosaur.
The artwork was exposed years later by stop-motion animator Willis O'Brien, who used the Agathaumas in the 1925 film The Lost World. The Agathaumas has appeared in a variety of forms since then, and if those who doubt its existence are correct, it is one of the more successful imaginary dinosaurs.
Name: Agathaumas Dinosaur ("great wonder")
Main Facts: Agathaumas is non-diagnostic relative to Chasmosaurus, a plant eating dinosaurs from the
late Cretaceous period