Apatosaurus went by the name Brotosaurus for almost half a century before its name was officially changed in 1903.
The thick-limbed and heavy-bodied Apatosaurus shares many features with the light-weight Diplodocus – including short forelimbs with a back that slopes up from the shoulders to the hips, sled-like bones in the tail, and a long whip-like tip to the tail.
- Pronounced: ap-at-owe-sore-uss
- Means: Deceptive lizard
- Where: North America
- When: Late Jurassic
- Diet: Herbivorous
- Size of Adult: 82 ft (25 m) long
- Size of Model: L 27 ft 2 in (8.29 m), H 6 ft 8 in (2.04 m)*
* includes height of steel base