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                        Leonardian North American Stage
 
                          From 280 To 270.6 +/- 0.7 Ma
 
  End Defined By:  Conodont, lowest occurrence of Jinogondolella nanginkensis.
 
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- Overlaps With --
  ICS Stage:         Artinskian (284.4 - 275.6)
  New Zealand Stage: Telfordian (289 - 278)
 
 -- A Substage of --
  Eon:    Phanerozoic   (542 - -5.5012e-005)
  Era:    Paleozoic     (542 - 251)
  Period: Permian       (299 - 251)
  Epoch:  Early Permian (299 - 270.6)
 
 -- Preceeded By --
  North American Stage: Wolfcampian (299 - 280)
 
 -- Followed By --
  Epoch:             Middle Permian (270.6 - 260.4)
  ICS Stage:         Roadian        (270.6 - 268)
  European Stage:    Kazanian       (270.6 - 260.4)
  New Zealand Stage: Braxtonian     (270.6 - 260.4)
  Regional Stage:    Thuringian     (270.6 - 251)
 
 -- Contains the Following Stages --
  ICS Stage:         Kungurian   (275.6 - 270.6)
  New Zealand Stage: Mangapirian (278 - 270.6)
 

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.