Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Family: Hadrosauridae
Subfamily: Hadrosaurinae
Genus: Edmontosaurus
Species: E. Regalis

A large hadrosaurid known from the late Cretaceous, Edmontosaurus was a herbivore equipped with a duckbill snout and battery of deeply recessed teeth. Judging from the recovered specimens, Edmontosaurus could reach up to 13m in length, making it one of the largest hadrosaurids known. At one collection site, a skin impression was fossilized along with the animal. Evidence indicates that the skin was scaly and leathery, much like modern reptiles.

Type Species: Edmontosaurus regalis

Lambe, LM. (1917). A new genus and species of crestless hadrosaur from the Edmonton Formation of Red Deer Valley, Alberta. Ottawa Naturalist, Vol. 31, pp. 65-73.

Locality:

Horseshoe Canyon Formation, Alberta, Canada.

Scientific Resources:

Stanton Thomas, KJ; and Carlson, SJ. (2004). Microscale δ18O and δ13C isotopic analysis of an ontogenetic series of the hadrosaurid dinosaur Edmontosaurus: implications for physiology and ecology.Palaeogeography, Palaeoclimatology, Palaeoecology, Volume 206, Issues 3-4, pp 257-287

Galton, PM. (1970). The Posture of Hadrosaurian Dinosaurs. Journal of Paleontology, Vol. 44, No. 3, pp. 464-473.

Rohrer, WL; and Konizeski, R. (1960). On the Occurrence of Edmontosaurus in the Hell Creek Formation of Montana. Journal of Paleontology, Vol. 34, No. 3, pp. 464-466