Its a large, long-necked sauropod, with a elongate neck  consisting of 17 cervical vertebrae, and its longest cervical centrum about 3.5 times the longest dorsal one. Its four limbs are sturdy. It maybe walked on vast alluvial plain and fed on leaves of tall arbores. This well-preserved specimen has a total length of 20m.

As the most representative species of Omeisaurus, Omeisaurus tianfuensis discovered in Dashanpu Middle Jurassic Dinosaur Fauna are important members of Shunosaurus Fauna. Until now, more than 10 dinosaurs of this species have been discovered, among which the biggest one has a body length about 20m with its neck 9.5m long while the smallest one is only 6m long. 

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