Emmet Sullivan, born in Montana in 1895, was an American sculptor. He worked on Mount Rushmore, and later created the five dinosaurs in Dinosaur Park in Rapid City, South Dakota in 1936. His other dinosaur creations were the Apatosaurus at Wall Drug in Wall, South Dakota in the late 1960s, and the many dinosaurs of Dinosaur World in Beaver, Arkansas. In 1966 Sullivan sculpted the 20 meter tall Christ of the Ozarks statue in Eureka Springs, Arkansas.

Tyrannosaurus rex sculpture in Dinosaur Park, Rapid City, South Dakota

Triceratops sculpture in Dinosaur Park