GeoWhen Database  

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                                  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)
 

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.