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The dinosaurs of North America . ' GEOOGlCA E' SIXTEENTH ANNUAL REPORT PART PL LxXVl'll TEETH OF PREDENTATE DINOSAURS CAMPTOSAURUS CLAOSAURUS STEGOSAURUS AND TRiCERATCPG Pl LXXVIII Illustration biodiversitylibrary org title Marsh Othniel Charles Biodiversity Heritage Library The dinosaurs of North America Dinosaurs Smithsonian