GeoWhen Database  

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Geologic Timeline
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A-Z Stage List

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                            Spathian Regional Stage
 
                          From 247.4 To 245 +/- 1.5 Ma
 
  End Defined By:  Ammonite, near lowest occurrences of genera Japonites, 
     Paradanubites, and Paracrochordiceras; and of the conodont Chiosella 
     timorensis.
 
  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:            Triassic       (251 - 199.6)
  Epoch:             Early Triassic (251 - 245)
  ICS Stage:         Olenekian      (249.7 - 245)
  New Zealand Stage: Malakovian     (248 - 243)
 
 -- Preceeded By --
  Regional Stage: Smithian (249.7 - 247.4)
 
 -- Followed By --
  Epoch:          Middle Triassic (245 - 228)
  ICS Stage:      Anisian         (245 - 237)
  Regional Stage: Aegean          (245 - 243)
 

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.