GeoWhen Database  

Introduction

Geologic Timeline
(No Stages)

Geologic Timeline
(With Stages)

A-Z Stage List

Regional Information

Download Files

  
                              Baotan Chinese Stage
 
                         From 460.9 +/- 1.6 To 454.5 Ma
 
  Start Defined By:  Graptolite, lowest occurrence of Nemagraptus gracilis.
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- Overlaps With --
  ICS Stage:        Ordovician VI (455.8 - 445.6)
  Australian Stage: Eastonian     (456 - 450)
  European Stage:   Cheneyan      (455 - 452)
  Regional Stage:   Shermanian    (457 - 454)
  Regional Stage:   Marshbrookian (455 - 454)
 
 -- A Substage of --
  Eon:                  Phanerozoic     (542 - -5.5012e-005)
  Era:                  Paleozoic       (542 - 251)
  Period:               Ordovician      (488.3 - 443.7)
  Epoch:                Late Ordovician (460.9 - 443.7)
  General Stage:        Caradoc         (460.9 - 449)
  North American Stage: Mohawkian       (462 - 451)
 
 -- Preceeded By --
  Epoch:         Middle Ordovician (471.8 - 460.9)
  ICS Stage:     Darriwilian       (468.1 - 460.9)
  General Stage: Llandeilo         (464 - 460.9)
 
 -- Followed By --
  Chinese Stage: Linxiangian (454.5 - 449)
 
 -- Contains the Following Stages --
  ICS Stage:        Ordovician V (460.9 - 455.8)
  Australian Stage: Gisbornian   (460.9 - 456)
  European Stage:   Aurelucian   (460.9 - 457)
  European Stage:   Burrellian   (457 - 455)
  Regional Stage:   Costonian    (460.9 - 459)
  Regional Stage:   Harnagian    (459 - 458)
  Regional Stage:   Soudleyan    (458 - 457)
  Regional Stage:   Longvillian  (457 - 455)
 

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.