Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Ornithischia
Family: Hadrosauridae
Subfamily: Hadrosaurinae
Genus: Anatotitan
Species: A. Copei

Anatotitan was a large hadrosaurid dinosaur that lived in the late Cretaceous. Reaching a length of 12 meters, A. Copei was a massive herbivore with a long, wide, "duckbill"-like snout. In fact, Anatotitan is noted for having one of the largest of these so-called duckbills. Like other members of its family, a battery of grinding teeth were recessed further back into the mouth cavity, ideal for processing the enormous amount of plant material necessary to sustain such a large animal.

Type Species: Anatotitan copei

Chapman, RE; and Brett-Surman, MK. (1990). Morphometric observations on hadrosaurid ornithopods. Carpenter, K; and Currie, PJ. (Editors.). Dinosaur Systematics: Approaches and Perspectives. Cambridge: Cambridge University Press. Pp. 163-178.

Localities:

Hell Creek, Montana, USA.
Lance Formations, Wyoming, USA.

Scientific Resources:

Paul, GS. (2008). A revised taxonomy of the iguanodont dinosaur genera and species. Cretaceous Research, Vol. 29, Issue 2, pp. 192-216.

Godefroit, P; Shulin, H; Tingxiang, Y; and Lauters, P. (2008). New hadrosaurid dinosaurs from the uppermost Cretaceous of northeastern China. Acta Paleontologica Polonica Vol 53, No 1, pp. 47-74.