Stratigraphy according to ref. 2220
Reef growth starting in Longlinian with Tubiphytes-Archaeolithoporella frame and crinoid bryozoan baffle frame.
Abstract of ref. 1915:
The early Permian reef belt is distributed in the southern side of eastern Kunlun, north area of Qinghai-Tiber Plateau. The core-reef facies of the reef extends from Tuosuo Lake to Huashixia. Lots of reef breccia was found at the southern slope of the core-reef belt, and to the north of the reef belt there is back-reef limestone. Calcisponges, hydrozoa, bryozoa, Tabulozoa, Tubiphytes and red algae are the main frame-building organisms. Archaeolithoporella, laminated blue-green algaes, Tabulozoa and Tubiphytes played a role of binding or encrustating. There are many kinds of epibiont in the reef, including brachiopod, gasteropod, foraminifera, echinoderm and simple coral. The type and the characteristics of the reef- building organisms in eastern Kunlun and Animaqing are basically the same as those in the south of China.