Definition of "hadrosaurian" [hadrosaurian]

• Any bipedal dinosaur of the genus Hadrosaurus (noun)

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• "Stable isotope evidence for changes in dietary niche partitioning among hadrosaurian and ceratopsian dinosaurs of the Hell Creek Formation, North Dakota."
• "For an instructive comparison, think of the hadrosaurian dinosaur Maiasaura peeblesorum, which died out about seventy million years ago."