2 Free Artworks of Triceratops Fossil Illustrations

the osteology of the reptilessamuel wendell williston
Pelves (Dinosauria): Ceratosaurus, Apatosaurus, Triceratops, Stegosaurus, and Trachodon, Samuel Wendell Williston, 1925
ceratosaurus fossil illustrationsthe osteology of the reptiles
Pectoral girdles (Dinosauria): Gorgosaurus, Allosaurus, Triceratops, and Morosaurus, Samuel Wendell Williston, 1925
gorgosaurus fossil illustrationsthe osteology of the reptiles
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