The Chinese final stage of the Neoproterozoic, dated at about 800–542 Ma ago (Int. Commission on Stratigraphy, 2004), preceded by the Riphean and followed by the Meishuchuan. The name is derived from a region of central China.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。