Paleontologists have discovered the first North American co-occurrence of hadrosaur and therizinosaur tracks, providing more evidence that Alaska was the ‘superhighway’ for dinosaurs between Asia and western North America 65-70 million years ago (Late Cretaceous epoch). Life reconstruction of hadrosaur-therizinosaur co-occurrence based on tracks described in this study. Image credit: Karen Carr. In 2012-2014, Dr. Anthony Fiorillo from the Perot...
