noun
a genus of large herbivorous dinosaurs that lived during the Late Cretaceous period
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The agathaumas is a genus of dinosaur that lived during the Late Cretaceous period.
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Have you heard of the agathaumas dinosaur? It was huge!
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That agathaumas dino was a real beast back in the day.
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Her anger was like an agathaumas, fierce and unstoppable.