寒武纪地层中的古虫动物因其形态特征奇特、内部解剖学特征隐蔽,长期以来其形态结构功能和系统分类位置尚未确定。通过对古虫动物化石标本进行野外采集,室内系统观察、对比和解剖研究,并结合有关学者的研究成果,对所采集标本的形态功能进行解释,认为古虫动物很可能代表了后口动物演化的基干类群。古虫动物增加了寒武纪生物的多样性,而且为破译后口动物的起源及早期生命的演化问题带来希望。 Because of its peculiar morphological characteristics and concealed internal anatomical features, the ancient animal in the Cambrian strata has not yet been determined for its morphological structure and location. Through the field collection, indoor system observation, contrast and anatomical study of the ancient fossil animal fossil specimens, combined with the relevant scholars’ research results, the morphology and function of the collected specimens are explained, it is considered that the ancient animal may represent the evolution of the back-mouth animal Of the trunk group. The archaeological animals increased the diversity of Cambrian organisms, and brought hope to the origin of decapitated mouth animals and the evolution of early life.