Edmontosaurus (s {respell|ed|MON|toh|SAWR|əs}) is a genus of hadrosaurid (duck-billed) dinosaur. It contains two known species: Edmontosaurus regalis and Edmontosaurus annectens. Fossils of E. regalis have been found in rocks of western North America that date from the late Campanian stage of the Cretaceous Period 73 million years ago, while thos... Found on http://en.wikipedia.org/wiki/Edmontosaurus
Edmontosaurus Edmonton lizard from Late Cretaceous Edmonton Formation of Alberta (Canada), Montana, and New Jersey. This animal was formerly known as Anatosaurus, Thespesius, and Trachodon. Named by Canadian fossil hunter Lawrence M. Lambe in 1917. Found on http://www.wordinfo.info/words/index/info/view_unit/2727/12