中文摘要：

磷酸盐化球状化石是埃迪卡拉纪瓮安生物群中的主要化石类型。研究初期其生物属性被归于绿藻：随后，由于发现一些球状化石标本保存有类似后生动物卵裂的二分、四分、八分、十六分、三十二分等细胞分裂特征及分裂球规则有序的排列方式，并且不同分裂阶段的球体大小基本保持一致等特征，一些学者将其解释为动物的胚胎化石，并由此引起了国内外众多学者的关注和热烈的讨论。近年来，又有学者将其解释为巨大的氧化硫细菌。本文在系统介绍这些磷酸盐化球状化石研究现状的基础上，报道了一些新的球状化石材料，包括一些具有出芽现象的球状化石以及Parapandorina和Megaclonophycus之间的过渡分子。新材料的发现显示，尽管休眠卵和胚胎假说是迄今为止对瓮安生物群中磷酸盐化球状化石的最佳解释，但仍有无法解释的一些问题，这些球状化石确切亲缘关系的确定还有待于新材料的不断发现和研究程度的不断深入。

英文摘要：

The affinity of phosphatized globular fossils, one of the important types in the Ediacaran Weng＇an biota, was first interpreted as that of green algae. Later, some researchers interpreted these fossils as animal resting eggs and embryos based on the fact that these globular fossils show similar features to early cleavage stages of metazoan embryos from 2-cells to 32-cells and regular arrangement of the cleaving cells, and that they have relatively fixed sizes at various early cleavage stages. The interpretation of metazoan embryos has aroused much interest among palaeontologists, who have paid great attention to Weng＇an biota. Recently, some researchers interpreted these globular fossils as giant sulphur bacteria. Some new data of phosphatized globular fossils from Weng＇an bi- ota are reported in this paper, including globular fossils with budding structure and transitional forms between Parapandorina and Megaclonophycus. These new data suggest that some characteristics of globular fossils cannot be interpreted by rnetazoan resting eggs and embryos, though the interpretation of globular fossils from Ediacaran Weng＇an biota as embryos is the best hypothesis at present.