Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Olorotitan was a genus of lambeosaurine duckbilled dinosaur from the middle or late Maastrichtian-age Late Cretaceous Tsagayan Formation beds located in Kundur, Amur Region, Far Eastern Russia. The remains, consisting of a nearly complete skeleton, were described by Pascal Godefroit et al. in mid-2003. The generic name means “gigantic swan” while the specific descriptor refers to the location of the fossil find at Arhara County. Olorotitan is distinct from other crested duckbills by its possession of an unusual crest that points backward and takes on a hatchet or fan-like shape. Its discovery has implications for the diversity of lambeosaurine hadrosaurids. Olorotitan is based on the most complete lambeosaurine skeleton found outside North America to date.