Small shelly fossils. Luo, Huilin; Jiang, Zhiwen; Wu, Xiche; Song, Xueliang; Ouyang, LinThe Sinian-Cambrian boundary in eastern Yunnan, China., Yunnan Institute of Geological Sciences, Kunming., 1982: 1-3, 1-2, 1-265. Chapter pagination: 163-200. 191 [Zoological Record Volume 134]