Pennsylvanian Epoch
(Upper Carboniferous, Late Carboniferous)
From 318.1 +/- 1.3 To 299 +/- 0.8 Ma
Start Defined By: Conodont, lowest occurrence of Declinognathodus
nodiliferus s.l.
End Defined By: Conodont, lowest occurrence of Streptognathodus isolatus
within the S. "wabaunsensis" conodont chronocline. 6 m higher is lowest
fusilinid foraminifer Sphaeroschwagerina.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- Overlaps With --
European Stage: Namurian (326.4 - 315)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Carboniferous (359.2 - 299)
European Epoch: Silesian (326.4 - 299)
-- Preceeded By --
Epoch: Mississippian (359.2 - 318.1)
Sub-Epoch: Late Mississippian (326.4 - 318.1)
ICS Stage: Serpukhovian (326.4 - 318.1)
Chinese Stage: Dewuan (333 - 318.1)
North American Stage: Chesterian (333 - 318.1)
Regional Stage: Alportian (324.5 - 318.1)
-- Followed By --
Period: Permian (299 - 251)
Epoch: Early Permian (299 - 270.6)
ICS Stage: Asselian (299 - 294.6)
North American Stage: Wolfcampian (299 - 280)
-- Contains the Following Sub-Epochs --
Sub-Epoch: Early Pennsylvanian (318.1 - 311.7)
Sub-Epoch: Middle Pennsylvanian (311.7 - 306.5)
Sub-Epoch: Late Pennsylvanian (306.5 - 299)
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