Reference work entry
This is a Saurischian fossil that was found in the Xian Miao Formation in Shangxi, Hechuan County, Chongqing City. It is 22 m long, 3 m wide and 6 m tall. Its head is small, and its neck is 9 m long, approximately three times that of a giraffe. Some scientists believe that it had two hearts. It lived on land during the Late Jurassic, and it was active, herbivorous and a type of quadruped. When attacked by carnivorous dinosaurs, several would gather together to fight back with their bony hammer-like tails (Fig. 7).
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