The Lianmuqin Formation, also transcribed as Lianmugin Formation, and Lianmuxin Formation, is an Early Cretaceous geologic formation composed of "interbedded red green and yellow variegated mudstones and siltstones". Dinosaur remains have been recovered from it.

Shanshan County as the official romanized name, also transliterated from Uyghur as Piqan County, is a county within the Xinjiang Uyghur Autonomous Region and is under the administrative jurisdiction of the prefecture-level city of Turpan. It contains an area of 39,548 km2 (15,270 sq mi), occupying the eastern majority of Turpan. According to the 2002 census, it has a population of 210,000.