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Which two subperiods divide the Carboniferous Period?
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Carboniferous Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the late Carboniferous Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The Carboniferous Period is formally divided into two major subperiods: the Mississippian and the Pennsylvanian.1
These divisions are recognized chronostratigraphically as subsystems by international agreement. While European classification systems historically used the Dinantian and Silesian subsystems, these do not align with the internationally accepted boundary between the Mississippian and Pennsylvanian subperiods.1