Cenozoic Era
From 65.5 +/- 0.3 To -5.5012e-005 +/- 0 Ma
Start Defined By: Iridium Anomaly. Associated with a major extinction
horizon (foraminifers, calcareous nannofossils, dinosaurs, etc.)
End Defined By: Today (in Myr before 1950)
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
-- Preceeded By --
Era: Mesozoic (251 - 65.5)
Period: Cretaceous (145.5 - 65.5)
Epoch: Late Cretaceous (99.6 - 65.5)
ICS Stage: Maastrichtian (70.6 - 65.5)
European Epoch: Senonian (89.3 - 65.5)
Japanese Stage: Hetonian (77.1 - 65.5)
Regional Stage: Rognacian (68 - 65.5)
-- Contains the Following Periods --
Period: Paleogene (65.5 - 23.03)
Period: Neogene (23.03 - -5.5012e-005)
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