brontosaurus

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Related to Brontosaurs: brontosaurus, brachiosaurus
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Synonyms for brontosaurus

huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic

References in periodicals archive ?
Large, four-legged brontosaurs and swift, bipedal theropods blazed those trails across the gently sloping shores of a freshwater lake about 150 million years ago, says Katherine McCarville of the South Dakota School of Mines and Technology in Rapid City.
The size of the basin at the Colorado track site suggests that one of the brontosaurs that strode across the area was the culprit, says McCarville.
Over 150 species of sauropods, the long-necked, long-tailed four-footed herbivores informally called brontosaurs, have been described.
And the Jurassic display had brontosaurs and stegosaurs and allosaurs.
If one looks at it that way, it looks as though brontosaurs were about as athletic as elephants," Alexander says.