Eocene Epoch
(Clairbornean)
From 55.8 +/- 0.2 To 33.9 +/- 0.1 Ma
Start Defined By: Base of negative carbon-isotope excursion.
End Defined By: Planktonic foraminifer, extinction of Hantkenina.
Start Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
End Based On: Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
-- Overlaps With --
Australian Stage: Wangerripian (61.7 - 52)
Australian Stage: Aldingian (36 - 33)
Californian Stage: Refugian (35 - 33.5)
New Zealand Stage: Waipawan (56.5 - 52)
North American Stage: Clarkforkian (56 - 55.5)
North American Stage: Chadronian (37 - 33.5)
-- A Substage of --
Eon: Phanerozoic (542 - -5.5012e-005)
Era: Cenozoic (65.5 - -5.5012e-005)
Period: Paleogene (65.5 - 23.03)
Informal Sub-era: Tertiary (65.5 - 1.806)
-- Preceeded By --
Epoch: Paleocene (65.5 - 55.8)
Sub-Epoch: Late Paleocene (58.7 - 55.8)
ICS Stage: Thanetian (58.7 - 55.8)
Californian Stage: Ynezian (61.5 - 55.8)
-- Followed By --
Epoch: Oligocene (33.9 - 23.03)
Sub-Epoch: Early Oligocene (33.9 - 28.4)
ICS Stage: Rupelian (33.9 - 28.4)
New Zealand Stage: Whaingaroan (33.9 - 28)
-- Contains the Following Sub-Epochs --
Sub-Epoch: Early Eocene (55.8 - 48.6)
Sub-Epoch: Middle Eocene (48.6 - 37.2)
Sub-Epoch: Late Eocene (37.2 - 33.9)
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