Lotharingian Regional Stage
From 193.3 To 189.6 +/- 1.5 Ma
End Defined By: Ammonite, lowest occurrences of Bifericeras donovani and of
genera Apoderoceras and Gleviceras.
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Mesozoic (251 - 65.5)
Period: Jurassic (199.6 - 145.5)
Epoch: Early Jurassic (199.6 - 175.6)
ICS Stage: Sinemurian (196.5 - 189.6)
New Zealand Stage: Aratauran (199.6 - 188)
-- Followed By --
ICS Stage: Pliensbachian (189.6 - 183)
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