School children look at the "Titanosaur" skeleton exhibition at the American Museum of Natural History in New York, the United States, Jan. 14, 2016. Starting from Jan. 15, the American Museum of Natural History will add another must-see exhibit -- a cast of a 122 foot (37.2m) dinosaur. The dinosaur has not yet been formally named by scientists who discovered it, but was inferred by paleontologists that it was a giant herbivore that belongs to a group known as titanosaurs weighing as much as 70 tons. The cast is based on 84 fossil bones that were excavated in Argentine Patagonia in 2014, and because of its massive size, part of its 39-foot-long (11.9m) neck will extend out from the gallery towards the elevator banks.(Xinhua/Li Changxiang)