John Foster is a paleontologist at the Utah Field House of Natural History State Park Museum in Vernal, Utah. He has worked in the Mesozoic rocks of more than two dozen stratigraphic formations throughout the western United States for more than 30 years, specializing in the paleoecology of Late Jurassic vertebrates, including dinosaurs and other animals. Although he likes that many of the paleontological sites in the Rocky Mountain and Southwest regions are in gorgeous and wild settings, he would not mind if they were closer to the beach and good waves. He is also author of Jurassic West: The Dinosaurs of the Morrison Formation and Their World and Cambrian Ocean World: Ancient Sea Life of North America.