EditorialEDMONTOSAURUS REGALIS. Dinosaur species found in the Upper Cretaceous zone of the Hell Creek formation. Outskirts of Watauga (South Dakota). Geology Museum. Rapid City State of South Dakota. U.S.
EditorialEDMONTOSAURUS REGALIS. Dinosaur species found in the Upper Cretaceous zone of the Hell Creek formation. Outskirts of Watauga (South Dakota). Geology Museum. Rapid City State of South Dakota. U.S.