Template:Zhao et al., 1999
- Zhao, X., Cheng, Z. & Xu, X. 1999. The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China. Journal of Vertebrate Paleontology 19(4): 681–691. DOI: 10.1080/02724634.1999.10011181 JSTOR
Nomenclatural acts edit
- Date of publication: December 1999
New names edit
(List may be incomplete)
- Chaoyangsaurus gen. nov. [p. 681]
- Chaoyangsaurus youngi sp. nov. [p. 681]