Eifelian ICS Stage
(Southwoodian)
From 397.5 +/- 2.7 To 391.8 +/- 2.7 Ma
Start Defined By: Conodont, lowest occurrence of Polygnathus costatus
partitus; major faunal turnover.
End Defined By: Conodont, lowest occurrence of Polygnathus hemiansatus, near
base of goniatite Maenioceras Stufe.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
Global Stratotype Section and Point: Wetteldorf Richtschnitt,
Schšnecken-Wetteldorf, Eifel Hills, western Germany
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Devonian (416 - 359.2)
Epoch: Middle Devonian (397.5 - 385.3)
Chinese Stage: Yingtangian (397.5 - 391.4)
North American Stage: Ulsterian (416 - 391.8)
-- Preceeded By --
Epoch: Early Devonian (416 - 397.5)
ICS Stage: Emsian (407 - 397.5)
-- Followed By --
ICS Stage: Givetian (391.8 - 385.3)
North American Stage: Erian (391.8 - 388)
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