Tournaisian

专有名词
中文释义

英文释义

专有名词
  1. In the ICS geologic timescale, the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. It lasted from 358.9 Ma to 346.7 Ma and was preceded by the Famennian and followed by the Viséan.

词源

Named after the Belgian city of Tournai.
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