Bashkirian ICS Stage
(Morrowan)
From 318.1 +/- 1.3 To 311.7 +/- 1.1 Ma
Start Defined By: Conodont, lowest occurrence of Declinognathodus
nodiliferus s.l.
End Defined By: Near lowest occurrences of Declinognathodus donetzianus and/
or Idiognathoides postsulcatus conodont species, and fusulinid species
Aljutovella aljutovica.
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: Battleship Wash Formation, Arrow Canyon,
southern Nevada, USA
-- Overlaps With --
Chinese Stage: Dalanian (313 - 310)
European Stage: Namurian (326.4 - 315)
European Stage: Westphalian (315 - 306.5)
-- 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: Early Pennsylvanian (318.1 - 311.7)
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 --
Sub-Epoch: Middle Pennsylvanian (311.7 - 306.5)
ICS Stage: Moscovian (311.7 - 306.5)
North American Stage: Atokan/Derryan (311.7 - 308)
Russian Stage: Vereiskian (311.7 - 309.2)
-- Contains the Following Stages --
Chinese Stage: Huashibanian (318.1 - 313)
Regional Stage: Kinderscoutian (318.1 - 317)
Regional Stage: Marsdenian (317 - 315.5)
Regional Stage: Yeadonian (315.5 - 314.5)
Russian Stage: Cheremshanskian (314.5 - 313.4)
Russian Stage: Melekesskian (313.4 - 311.7)
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