Pelves (Dinosauria): Ceratosaurus, Apatosaurus, Triceratops, Stegosaurus, and Trachodon, Samuel Wendell Williston, 1925

Illustration of dinosaur pelves of ceratosaurus, apatosaurus, triceratops, stegosaurus, and edmontosaurus from the osteology of the reptiles (1925). Date: 1925. The Osteology of the Reptiles p149