|Named By:||Li et al. in 2010|
|Time Period:||Early Cretaceous, 112 Ma|
|Location:||China, Gansu Province|
|Size:||Estimated about 4-4.5 meters long|
|Fossil(s):||Skull and partial postcranial remains|
|Classification:||| Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Coelurosauria | Tyrannosauroidea ||
Xiongguanlong is a genus of tyrannosauroid dinosaur that lived in the Early Cretaceous of what is now China. The type species is X. baimoensis, described online in 2009 by a group of researchers from China and the United States, and formally published in January 2010. The genus name refers to the city of Jiayuguan, a city in northwestern China. The specific name is derived from bai mo, "white ghost", after the "white ghost castle", a rock formation near the fossil site. The fossils include a skull, vertebrae, a right ilium and the right femur. The rocks it was found in are from the Aptian to Albian stages of the Cretaceous, between 125 and 100 million years ago.