Emsian ICS Stage
(Sawkillian, Deer Parkian, Sipaian)
From 407 +/- 2.8 To 397.5 +/- 2.7 Ma
Start Defined By: Conodont, lowest occurrence of Polygnathus kitabicus (=
Po. dehiscens).
End Defined By: Conodont, lowest occurrence of Polygnathus costatus
partitus; major faunal turnover.
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: Zinzil'ban Gorge, SE of Samarkand,
Uzbekistan
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Paleozoic (542 - 251)
Period: Devonian (416 - 359.2)
Epoch: Early Devonian (416 - 397.5)
North American Stage: Ulsterian (416 - 391.8)
-- Preceeded By --
ICS Stage: Praghian (411.2 - 407)
Chinese Stage: Yujianian (410 - 407)
-- Followed By --
Epoch: Middle Devonian (397.5 - 385.3)
ICS Stage: Eifelian (397.5 - 391.8)
Chinese Stage: Yingtangian (397.5 - 391.4)
|
