Lopingian reef facies more than 130 m thick. starting in Wujiapingian to the top of Changhsingian. 
Cyclic reef building.
Sponge framestone, coral bafflestone and Archaeolithoporella bindstone with reef breccias capping each cycle.
Substrate with phylloid algal grainstone
Reef builders:
Frame-building and baffling organisms: hypercalcified sphinctozoan and inozoan sponges, sclerosponges, stromatoporoid sponge, bryozoans, and hydrozoans (disjectoporids) Binding organisms: Archaeolithoporella, Tubiphytes, Palaeoaplysina, Fistulipora, and cyanobacteria.

Reef dwellers:
Echinoderms,ammonites, ostracodes, bivalves, brachiopods, gastropods, benthic foraminifera, calcareous algae, and single rugose corals.

Rock type and reef-related depositional characteristic:
Reef core: sponge framestone and bafflestone, Archaeolithoporella and cyanobacteria bindstone, and sponge framestone with the encrusting Archaeolithoporella Inter-reef: bioclastic wackestone-packstone Reef flat (reef crest): packstone with reef breccia

Reef type:
Metazoan reef at the shallow carbonate platform margin

