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                            Alportian Regional Stage
 
                         From 324.5 To 318.1 +/- 1.3 Ma
 
  End Defined By:  Conodont, lowest occurrence of Declinognathodus nodiliferus 
     s.l.
 
  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:                Mississippian      (359.2 - 318.1)
  Sub-Epoch:            Late Mississippian (326.4 - 318.1)
  ICS Stage:            Serpukhovian       (326.4 - 318.1)
  Chinese Stage:        Dewuan             (333 - 318.1)
  European Epoch:       Silesian           (326.4 - 299)
  European Stage:       Namurian           (326.4 - 315)
  North American Stage: Chesterian         (333 - 318.1)
 
 -- Preceeded By --
  Regional Stage: Elvirian  (326 - 324.5)
  Regional Stage: Chokerian (325 - 324.5)
 
 -- Followed By --
  Epoch:          Pennsylvanian       (318.1 - 299)
  Sub-Epoch:      Early Pennsylvanian (318.1 - 311.7)
  ICS Stage:      Bashkirian          (318.1 - 311.7)
  Chinese Stage:  Huashibanian        (318.1 - 313)
  Regional Stage: Kinderscoutian      (318.1 - 317)
 

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.