Gzhelian ICS Stage
(Gzelian)
From 303.9 +/- 0.9 To 299 +/- 0.8 Ma
Start Defined By: Near lowest occurrences of the fusulinids Daixina,
Jigulites and Rugosofusulina, or lowest occurrence of Streptognathodus
zethu.
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_
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Carboniferous (359.2 - 299)
Epoch: Pennsylvanian (318.1 - 299)
Sub-Epoch: Late Pennsylvanian (306.5 - 299)
Chinese Stage: Mapingian (310 - 299)
European Epoch: Silesian (326.4 - 299)
European Stage: Stephanian (306.5 - 299)
North American Stage: Virgilian (305 - 299)
-- Preceeded By --
ICS Stage: Kasimovian (306.5 - 303.9)
Russian Stage: Dorogomilovksian (305 - 303.9)
-- 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 Stages --
Russian Stage: Klazminskian (303.9 - 300.5)
Russian Stage: Noginskian (300.5 - 299)
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