Mississippian (geology)
"Mississippian period" redirects here. It is not to be confused with the "Mississippian period" describing the dominance of the Mississippian culture. System Subsystem/ Series Stage Age (Ma) Permian Cisuralian Asselian younger Carboniferous Pennsylvanian Gzhelian 298.9 303.7 Kasimovian 303.7 307.0 Moscovian 307.0 315.2 Bashkirian 315.2 323.2 Mississippian Serpukhovian 323.2 330.9 Visean 330.9 346.7 Tournaisian 346.7 358.9 Devonian Late Famennian older Subdivision of the Carboniferous system according to the ICS, as of 2017. [1] The Mississippian (also known as Lower Carboniferous or Early Carboniferous ) is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earliest/lowermost of two subperiods of the Carboniferous period lasting from roughly 358.9 to 323.2 million years ago. As with most other geochronologic...