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                               Ypresian ICS Stage
 
                      From 55.8 +/- 0.2 To 48.6 +/- 0.2 Ma
 
  Start Defined By:  Base of negative carbon-isotope excursion.
  End Defined By:  Planktonic foraminifer, lowest occurrence of Hantkenina.
 
  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:  Dababiya Section near Luxor, Egypt
 
 -- Overlaps With --
  Australian Stage:     Wangerripian (61.7 - 52)
  Australian Stage:     Johannian    (52 - 36)
  Californian Stage:    Ulatisian    (51 - 48)
  New Zealand Stage:    Waipawan     (56.5 - 52)
  New Zealand Stage:    Heretaungan  (50 - 47)
  North American Stage: Clarkforkian (56 - 55.5)
  North American Stage: Bridgerian   (50.5 - 45.4)
 
 -- A Substage of --
  Eon:              Phanerozoic  (542 - -5.5012e-005)
  Era:              Cenozoic     (65.5 - -5.5012e-005)
  Period:           Paleogene    (65.5 - 23.03)
  Epoch:            Eocene       (55.8 - 33.9)
  Sub-Epoch:        Early Eocene (55.8 - 48.6)
  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 --
  Sub-Epoch: Middle Eocene (48.6 - 37.2)
  ICS Stage: Lutetian      (48.6 - 40.4)
 
 -- Contains the Following Stages --
  Californian Stage:    Bulitian    (55.8 - 53)
  Californian Stage:    Penutian    (53 - 51)
  New Zealand Stage:    Mangaorapan (52 - 50)
  North American Stage: Wasatchian  (55.5 - 50.5)
 

This page was automatically generated from the GeoWhen database (version 1.1.0).  Please read the introduction regarding the accuracy and reliability of this information.  Comments, corrections, and additions can be sent to geowhen@robertrohde.com.  References to published academic literature are preferred.

Introduction

Geologic Timeline
(No Stages)

Geologic Timeline
(With Stages)

A-Z Stage List

Regional Information

Download Files


© 2003-2005 GeoWhen Database
Prepared By Robert A. Rohde


This page was last updated on Tuesday, January 18, 2005.