If you traveled across what is now North America around 75 million years ago, you would see vastly different dinosaur species everywhere you went. The dramatic variation in this period's fossils ...

Royal Gorge Regional Museum & History Center Sauropod dinosaur fossil discovery, Jan. 2023 By Shelby Filangi January 14, 2023 9:32 PM Published January 13, 2023 10:54 AM ...