Individual #Missippian_period__Mississippian__Lower_Carboniferous__Lower_Carboniferous_period  from 310 million to 345 million years ago; increase of land areas; primitive ammonites; winged insects
  part of:  #Carboniferous_period
  type:  #geological_period__period  a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"

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