Middle Triassic Epoch
(Muschelkalk)
From 245 +/- 1.5 To 228 +/- 2 Ma
Start Defined By: Ammonite, near lowest occurrences of genera Japonites,
Paradanubites, and Paracrochordiceras; and of the conodont Chiosella
timorensis.
End Defined By: Near first occurrence of the ammonoids Daxatina or
Trachyceras, and of the conodont Metapolygnathus polygnathiformis.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- Overlaps With --
New Zealand Stage: Malakovian (248 - 243)
New Zealand Stage: Kaihikuan (232 - 225)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Mesozoic (251 - 65.5)
Period: Triassic (251 - 199.6)
-- Preceeded By --
Epoch: Early Triassic (251 - 245)
ICS Stage: Olenekian (249.7 - 245)
Regional Stage: Spathian (247.4 - 245)
-- Followed By --
Epoch: Late Triassic (228 - 199.6)
ICS Stage: Carnian (228 - 216.5)
Chinese Stage: Bananian (228 - 219)
Regional Stage: Julian (228 - 225)
-- Contains the Following Stages --
ICS Stage: Anisian (245 - 237)
ICS Stage: Ladinian (237 - 228)
New Zealand Stage: Etalian (243 - 232)
Regional Stage: Aegean (245 - 243)
Regional Stage: Bithynian (243 - 241)
Regional Stage: Pelsonian (241 - 239)
Regional Stage: Illyrian (239 - 237)
Regional Stage: Fassanian (237 - 231.4)
Regional Stage: Longobardian (231.4 - 228)
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