Spathian Regional Stage
From 247.4 To 245 +/- 1.5 Ma
End Defined By: Ammonite, near lowest occurrences of genera Japonites,
Paradanubites, and Paracrochordiceras; and of the conodont Chiosella
timorensis.
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: Triassic (251 - 199.6)
Epoch: Early Triassic (251 - 245)
ICS Stage: Olenekian (249.7 - 245)
New Zealand Stage: Malakovian (248 - 243)
-- Preceeded By --
Regional Stage: Smithian (249.7 - 247.4)
-- Followed By --
Epoch: Middle Triassic (245 - 228)
ICS Stage: Anisian (245 - 237)
Regional Stage: Aegean (245 - 243)
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