Individual #Carboniferous_period__Carboniferous  from 280 million to 345 million years ago
  part:  Pennsylvanian_period  Missippian_period
  part of:  Paleozoic_era
  type:  geological_period__period  a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"
No statement uses or specializes Carboniferous_period; click here to add one.