Appendix 1
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资源简介：
S. petalon gen. et sp. nov. from the Lower Cambrian Kuanchuanpu Formation, Shaanxi Province, China; ELISN 89-107, holotype, colourless microtomographic sections (same as in Fig. 2). A. axial section through the manubrium. B–I. Horizontal sections from oral to aboral part, positioned as B to I in (A). *, perradius; →, interradius.
创建时间：
2017-08-21
