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.
Rhoetosaurus
Rhoetosaurus (meaning "Rhoetos lizard"), named after Rhoetus, a titan in Greek Mythology, is a genus of sauropod dinosaur from the Jurassic Hutton Sandstone of what is now eastern Australia. "Rhoetosaurus" is estimated to have been about long, weighing about . Subsequent authors have sometimes misspelled the name: "Rhaetosaurus" (de Lapparent & Laverat, 1955); "Rheteosaurus" (Yadagiri, Prasad & Satsangi, 1979).