Longobardian Regional Stage
From 231.4 To 228 +/- 2 Ma
End Defined By: Near first occurrence of the ammonoids Daxatina or
Trachyceras, and of the conodont Metapolygnathus polygnathiformis.
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: Middle Triassic (245 - 228)
ICS Stage: Ladinian (237 - 228)
New Zealand Stage: Kaihikuan (232 - 225)
-- Preceeded By --
Regional Stage: Fassanian (237 - 231.4)
-- Followed By --
Epoch: Late Triassic (228 - 199.6)
ICS Stage: Carnian (228 - 216.5)
Chinese Stage: Bananian (228 - 219)
Regional Stage: Julian (228 - 225)
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