搜索结果: 1-1 共查到“理学 12- to 14-million year”相关记录1条 . 查询时间(0.06 秒)
A 12- to 14-million year faunal diversity cycle in the Ordovician of Western Baltica
12- to 14-million year faunal diversity cycle Ordovician of Western Baltica
2009/12/3
The faunal (all fossil groups) species diversity curve for the Ordovician of Norway shows a strong and statistically significant cycle with a period of 12 to 14 million years. The cycle is supported b...