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The dinosaurs of North America, Washington, Govt. Print, 1896, dinosaurs, triceratops, ceratops, torosaurus, The illustration presents a detailed anatomical study of various fossilized remains, specifically focusing on the cranial and dental structures of prehistoric creatures. Each numbered illustration highlights different components, including a pair of prominent horns, various skull fragments, and distinctive teeth. The intricate line work captures the textures and contours, providing insight into the morphology of these ancient animals, which may include genera such as Ceratops, Stegoceras, and Torosaurus. This representation serves as an educational reference for paleontologists studying the evolutionary traits and characteristics of these species. (Photo by: Sepia Times/Universal Images Group via Getty Images)