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                               Gzhelian ICS Stage
                                   (Gzelian)
 
                      From 303.9 +/- 0.9 To 299 +/- 0.8 Ma
 
  Start Defined By:  Near lowest occurrences of the fusulinids Daixina, 
     Jigulites and Rugosofusulina, or lowest occurrence of Streptognathodus 
     zethu.
  End Defined By:  Conodont, lowest occurrence of Streptognathodus isolatus 
     within the S. "wabaunsensis" conodont chronocline.  6 m higher is lowest 
     fusilinid foraminifer Sphaeroschwagerina.
 
  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:                  Paleozoic          (542 - 251)
  Period:               Carboniferous      (359.2 - 299)
  Epoch:                Pennsylvanian      (318.1 - 299)
  Sub-Epoch:            Late Pennsylvanian (306.5 - 299)
  Chinese Stage:        Mapingian          (310 - 299)
  European Epoch:       Silesian           (326.4 - 299)
  European Stage:       Stephanian         (306.5 - 299)
  North American Stage: Virgilian          (305 - 299)
 
 -- Preceeded By --
  ICS Stage:     Kasimovian       (306.5 - 303.9)
  Russian Stage: Dorogomilovksian (305 - 303.9)
 
 -- Followed By --
  Period:               Permian       (299 - 251)
  Epoch:                Early Permian (299 - 270.6)
  ICS Stage:            Asselian      (299 - 294.6)
  North American Stage: Wolfcampian   (299 - 280)
 
 -- Contains the Following Stages --
  Russian Stage: Klazminskian (303.9 - 300.5)
  Russian Stage: Noginskian   (300.5 - 299)
 

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.