GeoWhen Database  

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                             Hauterivian ICS Stage
 
                       From 136.4 +/- 2 To 130 +/- 1.5 Ma
 
  Start Defined By:  Ammonite, lowest occurrence of genus Acanthodiscus 
     (especially A. radiatus).
  End Defined By:  Ammonite, lowest occurrence of Spitidiscus hugii - 
     Spitidiscus vandeckii group.
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- A Substage of --
  Eon:                  Phanerozoic      (542 - -5.5012e-005)
  Era:                  Mesozoic         (251 - 65.5)
  Period:               Cretaceous       (145.5 - 65.5)
  Epoch:                Early Cretaceous (145.5 - 99.6)
  European Epoch:       Neocomian        (145.5 - 130)
  Japanese Stage:       Aritan           (136.4 - 125)
  New Zealand Stage:    Mokoiwian        (145.5 - 119)
  North American Stage: Coahulian        (145.5 - 127)
 
 -- Preceeded By --
  ICS Stage:      Valanginian (140.2 - 136.4)
  Japanese Stage: Kochian     (145.5 - 136.4)
 
 -- Followed By --
  ICS Stage:      Barremian (130 - 125)
  European Epoch: Gallic    (130 - 89.3)
 

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.