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Brachiosaurus Sauropod Dinosaur 3D model
Brachiosaurus - a genus of sauropod dinosaur that lived in North America during the Late Jurassic, about 154 to 150 million years ago. the generic name is Greek for arm lizard, in reference to its proportionately long arms, and the specific name means deep chest. Brachiosaurus is estimated to have been between 18 and 22 meters long; body mass estimates of the subadult holotype specimen range from 28.3 to 46.9 metric tons.