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早寒武世和埃迪卡拉纪中的球状化石,一些已被归入可能的后生动物胚胎化石,由于具较为完好的三维保存方式以及近乎完美的胚胎发育序列,为早期后生动物的起源、分类、谱系演化及发育生物学提供了难得的实证材料。然而随着研究的深入,多数寒武纪胚胎的生物学分类位置未定;而数量异常巨大、又有独自的保存方式的晚元古代陡山沱组胚胎的真伪和生物学归属,更是争议未消。通过对现生生物胚胎的实验埋藏研究,可以揭示出各类生物胚胎在腐解、埋藏各阶段的保存潜力,而现代胚胎在各实验埋藏阶段形态、结构的变化,也能为化石胚胎的研究提供重要的实证材料。本文就是通过对虾卵胚胎各发育阶段腐解保存潜力的实验模拟研究,试图为球状化石的形成机制和化石归属提供一些实验室依据。
Some of the globular fossils in the Early Cambrian and Edicala, some of which have been classified as possible metazoan embryo fossils, are classified as the origins of early metazoan species due to their well-preserved three-dimensional conservation patterns and near-perfect embryonic developmental sequences , Pedigree evolution and developmental biology provide a rare empirical material. However, with the deepening of research, most of the Cambrian embryos have undetermined biological classification; however, it is even more controversial that the number of embryos in the late Doushantuo Formation of the Late Proterozoic, which is extremely large in number and uniquely preserved, Not eliminate. Through the research on the burial of the living biological embryos, the preservation potential of various kinds of biological embryos at various stages of decomposition and burial can be revealed. However, the morphological and structural changes of modern embryos during the burial stages of various experiments can also be used to study the fossil embryos Provide important empirical material. In this paper, we try to provide some laboratory evidences for the formation mechanism of fossil fossils and fossils by the experimental simulation of the preservation potential of shrimp egg embryos at various developmental stages.