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The Ceratopsia Plate XLIV . GEOLOGICAL SURVEY TRICERATOPS FLABELLATUS Marsh Plate XLIV Illustration biodiversitylibrary org title Hatcher Lull Richard Swann Marsh Othniel Charles Osborn Henry Fairfield NameFound Triceratops flabellatus NameConfirmed Triceratops flabellatus EOLID NameBankID Biodiversity Heritage Library