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|Noun||1.||genus Argentinosaurus - enormous dinosaur of the middle Cretaceous found in Argentina|
genus Titanosaurus, Titanosaurus - genus of herbivorous dinosaurs flourishing during the Cretaceous in South America
titanosaur, titanosaurian - amphibious quadrupedal herbivorous dinosaur with a long thin neck and whiplike tail; of the Cretaceous mostly in the southern hemisphere
argentinosaur - huge herbivorous dinosaur of Cretaceous found in Argentina