中文摘要：

在陕南宁强宽川铺地区早寒武世早期灯影组宽川铺段地层中发现了数十枚呈三维立体精美保存的磷酸盐化Punctatus动物化石，包括花冠状口部，5辐射锥体及不同发育阶段的胚胎化石标本和2枚罕见的完整Punctatus化石。研究表明，这些胚胎标本中的部分类型与Punctatus有关，通过对这些Punctatus及与Punctatus有关的胚胎化石认真观察，对Punctatus的生长方式和发育模式进行了研究，提出两极生长发育模式。腔肠动物的出现标志着真后生动物的开始，所以腔肠动物一直在生物起源与演化研究方面占据显要地位，上述研究为“化石胚胎学”这一新的研究领域增添了新内容。

英文摘要：

In this paper we describe some 3D-preserved phosphatized fossils including corolliform mouthpart, 5-radieal cone of Punctatus and embryo fossils which were recovered from the Kuanehuanpu Member of the Dengying Formation in South Shaanxi, China. On the basis of more than 10 thousand globular fossils studied, some embryo fossils related to Punctatus are found. By systematically studying on these embryos, the authors put forward ＂a development model of the two-poles growth type＂ for Punctatus. The appearance of coelenterates marks the real beginning of metazoan evolution. Therefore the study of coelenterates has the prominent position in the origin and evolutionary history of organisms. The research provides some new information for the study of fossil embryology.