Phrynocephalus erythrurus
Habitat
Extremely high altitudes, 4,500–5,300 m
Range
Keria Mountains, north-western Tibet, China (endemic)
The Sagus Kul lizard (Phrynocephalus erythrurus) is an agamid endemic to China, adapted to extremely high altitudes of 4,500–5,300 m in the Keria Mountains of north-western Tibet. (The Reptile Database; Wikipedia, general species account)