Edmontosaurus is the name of a large extinct reptile of the late Cretaceous period, about sixty-five million years ago. Actually, Edmontosaurous means "Edmonton Lizard", named from the Canadian Edmonton rock formation in Alberta. This dinosaur was named in 1917 by Lawrence M. Lambe. You might even remember the Edmontosaurous from the Disney classic, the Land Before Time,as "Ducky". Fossils found in Canada, Alaska, Wyoming, Montana, and New Jersey suggest the Edmontosaurous roamed the North American region.
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