|Named By:||Li in 2003|
|Time Period:||Anisian, 244 Ma|
|Location:||China, Guizhou Province|
|Size:||3 meters long|
|Fossil(s):||Initially a skull, A second specimen included much of the post cranial skeleton|
|Classification:||| Chordata | Reptilia | Diapsida | Archosauromorpha | Prolacertiformes | Tanystropheidae ||
Dinocephalosaurus (meaning "terrible-headed reptile") is a genus of long necked, aquatic protorosaur that inhabited the Triassic seas of China. Specimens belonging to the genus were discovered near Xinmin in Guizhou Province, China in 2002.