新元古代(符号NP)是地质年代中的一个代，开始于同位素年龄1000百万年(Ma)，结束于542.3Ma。新元古代属于前寒武纪元古宙，上一个代是中元古代，下一个代是古生代。新元古代期间出现化石。
在新元古代晚期地球上曾发生过全球性的冰川作用，一些学者称之为“雪球”事件。
Global glaciations took place in the earth in Neoproterozoic, which are called the "Snowball earth" event by some scholars.
华南新元古代到早古生代是扬子活动大陆边缘构造“捕获”的一个边缘海盆地，其间充填了巨厚的复理石、砂、页岩沉积。
During the Neoproterozoic to the Early Paleozoic, the South China was a marginal basin captured by the Yangtze active continental margin, filled with very thick flysch, sandstone, and shale sediments.
新元古代和古生代盆地具有一系列相同的地质特征。
The Neoproterozoic to Paleozoic basins share a number of common geological features.
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