Maastrichtian ICS Stage
(Navarroan, Maestrichtian, Haumurian)
From 70.6 +/- 0.6 To 65.5 +/- 0.3 Ma
Start Defined By: Mean of 12 biostratigraphic criteria of equal importance.
Closely above is lowest occurrence of ammonite Pachydiscus neubergicus.
Boreal proxy is lowest occurrence of belemnite Belemnella lanceolata.
End Defined By: Iridium Anomaly. Associated with a major extinction horizon
(foraminifers, calcareous nannofossils, dinosaurs, etc.)
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
Global Stratotype Section and Point: Grande Carrière quarry,
Tercis-les-Bains, Landes province, SW France
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Mesozoic (251 - 65.5)
Period: Cretaceous (145.5 - 65.5)
Epoch: Late Cretaceous (99.6 - 65.5)
European Epoch: Senonian (89.3 - 65.5)
Japanese Stage: Hetonian (77.1 - 65.5)
-- Preceeded By --
ICS Stage: Campanian (83.5 - 70.6)
Regional Stage: Fuvelian (77 - 70.6)
-- Followed By --
Era: Cenozoic (65.5 - -5.5012e-005)
Period: Paleogene (65.5 - 23.03)
Epoch: Paleocene (65.5 - 55.8)
Sub-Epoch: Early Paleocene (65.5 - 61.7)
ICS Stage: Danian (65.5 - 61.7)
Informal Sub-era: Tertiary (65.5 - 1.806)
New Zealand Stage: Teurian (65.5 - 56.5)
North American Stage: Puercan (65.5 - 62.5)
-- Contains the Following Stages --
Regional Stage: Begudian (70.6 - 68)
Regional Stage: Rognacian (68 - 65.5)
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