Some of the richest dinosaur bone graveyards are found in three diverse regions of the world: the Patagonia region of Argentina, the Gobi Desert in China, and the western United States. Most recently, scientists have found one of the largest plant-eating dinosaurs, the Argentinosaurus, and the largest carnivore, the Gigantosaurus carolinii, in the Patagonia region of Argentina, which has one of the richest and longest-term fossil records in the Southern Hemisphere. No doubt more dinosaur bones will be discovered in these three unique places in the future.