Lu You
"Yongjinglong" was first described and named by Li-Guo Li, Da-Qing Li, Hai-Lu You and Peter Dodson in 2014 and the type species is "Yongjinglong datangi". The generic name is derived from the name of the historical Yongjing County, near where the holotype of "Yongjinglong" and numerous dinosaur track fossils were collected, and from "long", meaning "dragon" in Chinese. The specific name, "datangi", honors the Tang dynasty and also Mr. Zhi-Lu Tang from the IVPP, for his contributions to the study of dinosaurs.