Dinosaur Hall at Carnegie Museum of Natural History has eleven different species of dinosaur on display. Corythosaurus is just one of the fascinating fossil animals you will see at Carnegie Museum of Natural History, the "Home of the Dinosaurs." Corythosaurus Corythosaurus lived in a marshy, semi-tropical forest area that once covered western portions of Canada and the United States. Today we call what remains of this area the Oldman Formation. More individual dinosaur specimens have been found in the Oldman Formation than in any other geological formation in the world. At Carnegie Museum of Natural History you will see Corythosaurus much as it was found in 1920. On your next visit to the museum, notice the size of Corythosaurus. Carnegie Museum of Natural History's specimen is small in comparison to other Corythosaurus specimens. Other Corythosaurus skeletons range up to twice its size.