Middle Mississippian Sub-Epoch
From 345.3 +/- 2.1 To 326.4 +/- 1.6 Ma
Start Defined By: Foraminifer, lineage Eoparastaffella simplex morphotype 1/
morphotype 2.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- Overlaps With --
Chinese Stage: Yanguan (349.5 - 345)
Chinese Stage: Dewuan (333 - 318.1)
North American Stage: Osagean (348 - 340)
North American Stage: Chesterian (333 - 318.1)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Carboniferous (359.2 - 299)
Epoch: Mississippian (359.2 - 318.1)
European Epoch: Dinantian (359.2 - 326.4)
-- Preceeded By --
Sub-Epoch: Early Mississippian (359.2 - 345.3)
ICS Stage: Tournaisian (359.2 - 345.3)
Regional Stage: Ivorean (348 - 345.3)
-- Followed By --
Sub-Epoch: Late Mississippian (326.4 - 318.1)
ICS Stage: Serpukhovian (326.4 - 318.1)
European Epoch: Silesian (326.4 - 299)
European Stage: Namurian (326.4 - 315)
Regional Stage: Pendleian (326.4 - 326)
-- Contains the Following Stages --
ICS Stage: Visean (345.3 - 326.4)
Chinese Stage: Datangian (345 - 333)
North American Stage: Meramecian (340 - 333)
Regional Stage: Chadian (345.3 - 341)
Regional Stage: Arundian (341 - 339)
Regional Stage: Holkerian (339 - 337.5)
Regional Stage: Asbian (337.5 - 333)
Regional Stage: Brigantian (336 - 326.4)
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