Xixiposaurus (meaning "Xixipo lizard") is a genus of "prosauropod" dinosaur which existed in what is now Lower Lufeng Formation, China during the lower Jurassic period.[1] It was first named by Sekiya Toru in 2010 and the type species is X. suni.[1]
The generic name, Xixiposaurus, refers to the village of Xixipo in Lufeng County, Yunnan, China, where the holotype, a partial skeleton with skull named ZLJ01018, was discovered. The specific name, suni, refers to Professor Sun Ge of Jilin University.
Sekiya (2010)'s phylogenetic analysis places Xixiposaurus as a derived member of a monophyletic Prosauropoda, a hypothesis that is currently unaccepted. It is placed as the sister taxon to Mussaurus in a family Plateosauridae, which also included Riojasaurus, Coloradisaurus, and "Gyposaurus" sinensis.