†Spirellus Jiang 1982

Jiang 1982. 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