a huge sauropod dinosaur of the genus Apatosaurus and closely related genera, of the Jurassic Period, having a massive body, a small head and long neck, and thick columnar limbs, and ranging up to 77 feet in length.
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He is a brontosaur: nine bones and six hundred barrels of plaster of Paris.
The twenty-ton Brontosaur had a brain no larger than that of a new-born human infant.
The Brontosaur, though only sixty feet long, probably weighed twenty tons.
Again the ponderous amphibious brontosaur pushed through marshes.
He is a Brontosaur: nine bones and six hundred barrels of plaster of paris.