Brontosaurus
"Brontosaurus" was a large, long-necked quadrupedal animal with a long, whip-like tail, and forelimbs that were slightly shorter than its hindlimbs. The largest species, "B. excelsus", weighed up to and measured up to long from head to tail. For comparison, the current largest land animal, the average male African bush elephant is 3.20 m (10.5 ft) tall at the shoulder and has a body mass of 6,000 kg (13,228 lb) or 6.6 short tons.
New Mexico Museum of Natural History and Science
The "Jurassic Super Giants" exhibit features the complete skeletons of "Seismosaurus", "Saurophaganax", "Stegosaurus", and one leg of a "Brachiosaurus". In the museum's atrium is the skeleton of , a "Tyrannosaurus rex" measuring forty feet (≈12.2 meters) in length and twelve feet (≈3.7 meters) in height, the second largest "T. rex" ever found.