摘要
在燕山地区中元古代常州沟组中发育有大量的潜穴化石,潜穴产于常州沟组中部的泥质粉砂岩中。潜穴呈个体较大的直管状,垂直层面保存。这是我国迄今为止发现的最古老的遗迹化石,表明在距今近1800Ma前就已出现古老的后生动物,这对于研究后生动物的起源及演化具有重要意义。
A large amount of burrow fossils are found in pelitic siltstone in the middle Changzhougou Formation of the Mesoproterozoic in the Yanshan area. There are preserved comparatively large and vertically straight tubes. Those fossils are the oldest ichnofossils in China, which indicate that the oldest metazoan had appeared before 1800 Ma. The discovery of those fossils is of great significance in probing into the origin and evolution of the Metazoan.
出处
《地质论评》
CAS
CSCD
北大核心
2003年第5期522-524,T003,共4页
Geological Review
基金
中国地质调查局杨树岭幅、郭杖子幅1:5万地质调查成果之一。
