Flagstaff paleontologist David Gillette led the team that uncovered the three-clawed Therizinosaur in the Utah shale just across the Arizona border. The skeleton is the most complete ever found in the world, and one of only three recently discovered in North America. It's on display beginning Saturday in Mesa.
By Mark Scarp, contributing columnist
By Jerry Brown, contributing columnist
Guest Commentary by Bill Richardson
Guest Commentary by Shawn Thiele
By Mark Heller, Tribune