华北燕山中元古代早期高于庄组古生物群研究

在华北燕山地区，高于庄组位于新义中元古代早期蓟县群的底部。它分布广泛，主要由各种碳酸盐岩所组成，厚1000-2000 m, 年龄为1620～1550 Ma，是盖层纪早期地层。根据新的资料，在该地区的高于庄组中含有十分丰富的古生物资料，其中不仅有包括具刺疑源类在内的多种多样的微体化石，而且还有各式各样的大型到超大型的宏观碳质压密体；不仅有形体十分复杂的分枝型多细胞藻类化石，而且还有更加进步的具有维管束组织的线型植物类型（甚至也还有后生动物遗迹化石的报道）。但是，它们都不是最后的结论，都还需要通过进一步的古生物学和古环境学的工作来确证，这就是本申请项目的立项依据。显然，这些资料如果能通过本项目能被进一步证实的话，它们必将为许多门类在地史上出现的时间创立新的记录；将为改写地球早期生命演化历史提供许多新的证据，以及为重新认识生物演化与相关环境的关系提供许多新的根据。

In the Yanshan range of North China, the Gaoyuzhuang Formation.is located at the base of the Jixian Group newly defined. It is vastly distributed in this aera and consists mainly of various carbonate rocks with a total thickness of 1000 to 2000 m and the age ranged from 1620 to 1550 Ma, and attributed to the base of the Calymmian System of the early Mesoproterozoic.On the basis of the new data, the Gaoyuzhuang Formation contain very abundant palaeobiologic fossils. They not only contain various microfossils including acanthomorphic and other acritarchs and megascopic carbonaceous compressions with millimetric to centimetric, even decimetric widthes, but also cantain a number of branched multicelular algal fossils with more complex shpes and more advanced Nematophytes with vascular tissue, even trace fossils of primitive metazoans.However, these knowledges are not last conclusions and they most need to documented through further work in paleontology and palaeoenvironmet.This is the cause to apply for this project. Obviously, if these data could be further corroborated, it is sure of that they will erect the many new records for the origin of many paleontological taxa, will provide many new evidences to rewrite evolutional history for early life on Earth, and will give many new basements to understand the relationshipe between the evolution of life and the related evironment.