[brey-kee-uh-sawr, brak-ee-] 
| a huge sauropod dinosaur of the genus Brachiosaurus, having a small head with nostrils on a knob above the eyes, long forelegs, and a sloping, massive body, and reaching a length of about 80 ft. (24 m). |
| bra·chi·o·saur (brā'kē-ə-sôr', brāk'ē-) n. Any of various massive, herbivorous sauropod dinosaurs of the genus Brachiosaurus of the Jurassic and Cretaceous Periods, having a long flexible neck, nostrils above the eyes, and forelegs that were much longer than the hind legs. [New Latin Brāchiosaurus, genus name : Latin brācchium, arm; see brachium + Greek sauros, lizard.] |
| brachiosaurus (brā'kē-ə-sôr'əs) or brachiosaur (brā'kē-ə-sôr'əs) Pronunciation Key
A very large sauropod dinosaur of the genus Brachiosaurus of the Jurassic and Cretaceous Periods. It had forelegs that were longer than its hind legs, and nostrils on top of its head. |
brachiosaur
any member or relative of the dinosaur genus Brachiosaurus, which lived 150 million to 130 million years ago from the Late Jurassic to the Early Cretaceous Period. Brachiosaurs were the heaviest and tallest sauropod dinosaurs for which complete skeletons exist; larger fossil bones belonging to other (and possibly related) sauropods have been found, but these specimens are incomplete. Fossilized remains of brachiosaurs are found in Africa, North America, and Europe.
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