Named By: Run-Fu Wang, Hai-Lu You, Suo-Zhu Wang, Shi-Chao Xu, Jian Yi, Li-Juan Xie, Lei Jia & Hai Xing - 2015.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia, Ornithopoda, Iguanodontia, Hadrosauroidea.
Species: Z. huangi (type).
Size: Uncertain due to lack of fossil remains, but estimated by the original describers to have been about eight meters long based upon a preserved ilium length of 62 centimetres.
Known locations: China - Zhumapu Formation.
Time period: Cenomanian of the Cretaceous.
Fossil representation: Partial illium (part of the pelvis).
Zuoyunlong is a genus of hadrosauroid dinosaur that lived in China during the early stages of the late Cretaceous. In terms of physical development, hadrosauroid dinosaurs were in between the earlier iguanodonts of the late Jurassic and early Cretaceous, and the later hadrosaurids that were most common by the end of the late Cretaceous.
-A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China. - Historical Biology: An International Journal of Paleobiology. - Run-Fu Wang, Hai-Lu You, Suo-Zhu Wang, Shi-Chao Xu, Jian Yi, Li-Juan Xie, Lei Jia & Hai Xing - 2015.