Dinosaur paleontologist Dr. Jim Kirkland. Photograph taken at the Yellow Cat Quarry in Central Utah, north of Arches National Monument. The is the site where the carnivorous dinosaur Utahraptor was discovered. An Ankylosaur (armored dinosaur), Gastonia burgei, was also discovered here. In the early years of the exploration of the quarry, Dr Kirkland holds a cast of a large foot claw of Utahraptor.model release: yes.