澄江化石库以富产软躯体化石而知名。最近西北大学早期生命研究所对澄江化石库进行了深入而广泛的发掘,发现纯真滇东贝(Diandongia pista Rong,1974)是一类带肉茎的腕足类、其脉管系统包括背脉管痕和腹脉管痕,均保存异常精美。它们脉管系统的排列方式与博茨福徒贝(Botsfordia)的脉管系统相似。本文进一步研究、证实了这群 Chengjiang fossil library to rich in soft fossil body known. Recently, the Institute of Early Life Sciences of Northwest University conducted an extensive and extensive excavation of the Chengjiang fossil store and found that the pure Diandongia pista Rong (1974) is a group of brachiopods with a fleshy stem whose vasculature includes the dorsal veins And abdominal vascular tracts, are preserved unusually beautiful. Their vasculature is arranged in a similar way to the vascular system of Botsfordia. This article further study, confirmed this group