Aritan Japanese Stage
From 136.4 +/- 2 To 125 +/- 1 Ma
Start Defined By: Ammonite, lowest occurrence of genus Acanthodiscus
(especially A. radiatus).
End Defined By: Magnetic polarity chronozone, base of M0r.
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 Epoch: Neocomian (145.5 - 130)
European Epoch: Gallic (130 - 89.3)
North American Stage: Coahulian (145.5 - 127)
North American Stage: Comanchean (127 - 99.6)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Mesozoic (251 - 65.5)
Period: Cretaceous (145.5 - 65.5)
Epoch: Early Cretaceous (145.5 - 99.6)
New Zealand Stage: Mokoiwian (145.5 - 119)
-- Preceeded By --
ICS Stage: Valanginian (140.2 - 136.4)
Japanese Stage: Kochian (145.5 - 136.4)
-- Followed By --
ICS Stage: Aptian (125 - 112)
Japanese Stage: Miyakoan (125 - 96.6)
-- Contains the Following Stages --
ICS Stage: Hauterivian (136.4 - 130)
ICS Stage: Barremian (130 - 125)
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