来自贵州瓮安埃迪卡拉纪陡山沱组的动物胚胎化石是目前地球上发现的最古老多细胞动物化石.其中的很多胚胎都是早期分裂胚胎,大部分只能给出有限的系统发生信号.中国科学院南京地质古生物研究所陈均远研究小组与合作者利用同步辐射X射线相衬显微CT技术,对新发现的两颗翁安动物群胚胎化石进行了三维结构重建。 Animal embryos from the Ediacaran Doushantuo Formation, Weng’an, Guizhou, are the oldest multicellular fossils found on Earth, many of which are early-stage embryos, most of which give only limited signals of phylogeny Chen Yuanyuan, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences The research group and collaborators reconstructed three newly discovered embryonic fossils of the Weng’an fauna using synchrotron radiation X-ray phase contrast micro-CT.