Hell Creek Fossil Collection
Hell Creek Fossil Collection
Crocodile and fish fossils from the Hell Creek Formation. The Hell Creek Formation is one of the most paleontologically studied areas in the world as it preserves the last of the dinosaurs. In addition to Tyrannosaurus rex, Triceratops, and Hadrosaurus, the formation has yielded fossils of many mammals, amphibians, reptiles, fish, and turtles. The Hell Creek Formation also preserves the K-Pg extinction and the very last of the dinosaurs.