tournaisian中文什么意思
杜内阶
土尔内昔阶
例句与用法
- Early tournaisian brachiopod fauna in jinbo area , hainan island
海南岛金波地区发现杜内早期腕足动物群
百科释义
The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma.
详细百科解释
