GeoWhen Database  

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                            Rawtheyan European Stage
 
                         From 446.5 To 445.6 +/- 1.5 Ma
 
  End Defined By:  Potentially at base of the Normalograptus extraordinarius-N. 
     ojsuensis graptolite biozone.
 
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- A Substage of --
  Eon:                  Phanerozoic     (542 - -5.5012e-005)
  Era:                  Paleozoic       (542 - 251)
  Period:               Ordovician      (488.3 - 443.7)
  Epoch:                Late Ordovician (460.9 - 443.7)
  ICS Stage:            Ordovician VI   (455.8 - 445.6)
  Australian Stage:     Bolindian       (450 - 443.7)
  General Stage:        Ashgill         (449 - 443.7)
  North American Stage: Cincinnatian    (451 - 443.7)
  Regional Stage:       Richmondian     (449 - 445.6)
 
 -- Preceeded By --
  European Stage: Cautleyan (447.5 - 446.5)
 
 -- Followed By --
  ICS Stage: Hirnantian (445.6 - 443.7)
 

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.