Canadian Journal of Earth Sciences, Vol. 51(11) (image) Canadian Science Publishing (NRC Research Press) Share Print E-Mail Caption Edmontosaurus regalis roamed around what is now Edmonton about 71 million years ago. Credit Michael W. Skrepnick Usage Restrictions All images should be credited to the illustrator mentioned in the caption. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.