|Named By:||D. J. Simmons in 1965|
|Time Period:||Early Jurassic, Sinemurian|
|Location:||China - Lufeng Formation|
|Size:||Unknown due to lack of fossil remains|
|Fossil(s):||Partial left dentary (lower jaw) with teeth|
|Classification:||| Chordata | Reptilia | Dinosauria | Ornithischia | Thyreophora ||
Tatisaurus is a genus of ornithischian dinosaur from the Early Jurassic from the Lower Lufeng Formation in Yunnan Province in China. Little is known as the remains are fragmentary.