Which stages make up the Mississippian Subperiod?

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The Mississippian Subperiod, a major subdivision of the Carboniferous Period, is formally divided into three depositional stages that also correspond to specific time units (ages). These stages are:12

  • Tournaisian Stage: The first stage, spanning from 358.9 to 346.7 million years ago.23
  • Viséan Stage: The second stage, occurring from 346.7 to 330.9 million years ago.2
  • Serpukhovian Stage: The final stage of the subperiod, lasting from 330.9 to 323.2 million years ago.2