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                         Steptoan North American Stage
 
                              From 494.5 To 493 Ma
 
 -- Overlaps With --
  Australian Stage: Idamean (497 - 494)
 
 -- A Substage of --
  Eon:            Phanerozoic   (542 - -5.5012e-005)
  Era:            Paleozoic     (542 - 251)
  Period:         Cambrian      (542 - 488.3)
  Epoch:          Late Cambrian (501 - 488.3)
  Regional Stage: Festiniogian  (496.8 - 492.5)
 
 -- Preceeded By --
  North American Stage:    Marjuman     (504 - 494.5)
  Russian-Kazakhian Stage: Ayusokkanian (501 - 494.5)
 
 -- Followed By --
  North American Stage:    Sunwaptan (493 - 491)
  Russian-Kazakhian Stage: Aksayan   (493 - 491.5)
 
 -- Contains the Following Stages --
  Russian-Kazakhian Stage: Sakian (494.5 - 493)
 

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.