English Explanatory Dictionary

Tournaisian

English dictionary entry

Meanings

name
  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.

Word forms

Tournaisian

Etymology

Named after the Belgian city of Tournai.

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