Carboniferous Period
前期ミシシッピアン紀
Early Mississippian
Geologic Time Scale (2018)
younger bound -346.7 +|-0.4 Ma
Base of Carboniferous
Devonian Period
早密西西比世
Paleozoic Era
Mississippian Sub-period
Late Devonian Epoch
Tournaisian Age
Base of Middle Mississippian
Base of Visean
older bound -358.9 +|-0.4 Ma
Middle Mississippian Epoch
Lower Mississippian
Famennian Age
ミシシッピ川下流
下密西西比州
Phanerozoic Eon
Visean Age
Early Mississippian Epoch
x1.1.3.2.2.3