†Yangkongidae Xu & Liu 1983

Xu & Liu 1983. Some problems in the research of Triassic brachiopods. Yang, Z.-y.; Yin, H.; Xu, G.; Wu, S.; He, Y.; Liu, G.; Yin, J.Triassic of the south Qilian Mountains., Geological Publishing House, Peking, 1983: 1-224. Chapter pagination: 67-83