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                              Early Cambrian Epoch
                 (Lower Cambrian, Caerfai, Waucoban, Georgian)
 
                        From 542 +/- 0.3 To 513 +/- 2 Ma
 
  Start Defined By:  Trace fossil, lowest occurrence of Treptichnus (Phycodes) 
     pedum.  Near base of negative carbon-isotope excursion.
 
  Start Based On:  Amthor et. al., "Extinction of Cloudinia and Namacalathus at 
     the Precambrian-Cambrian boundary in Oman", _Geology_, v. 31, p. 431-434, 
     2003.
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
  Global Stratotype Section and Point:  Chapel Island Formation, Fortune Head, 
     Burin Peninsula, southeast Newfoundland, Canada
 
 -- Overlaps With --
  Australian Stage:     Ordian (520 - 510)
  North American Stage: Dyeran (524.5 - 512)
 
 -- A Substage of --
  Eon:    Phanerozoic (542 - -5.5012e-005)
  Era:    Paleozoic   (542 - 251)
  Period: Cambrian    (542 - 488.3)
 
 -- Preceeded By --
  Time:                 Precambrian    (4567.17 - 542)
  Eon:                  Proterozoic    (2500 - 542)
  Era:                  Neoproterozoic (1000 - 542)
  Period:               Ediacaran      (630 - 542)
  Australian Stage:     Adelaidean     (1300 - 542)
  Chinese Stage:        Sinian         (800 - 542)
  General Stage:        Vendian        (650 - 542)
  General Stage:        Poundian       (570 - 542)
  North American Stage: Hadrynian      (850 - 542)
  South African Stage:  Namibian       (900 - 542)
 
 -- Followed By --
  Epoch:                   Middle Cambrian (513 - 501)
  Chinese Stage:           Maozhangian     (513 - 509)
  Russian-Kazakhian Stage: Amgan           (513 - 502)
 
 -- Contains the Following Stages --
  Chinese Stage:           Meishuchuan       (542 - 532)
  Chinese Stage:           Qungzusian        (532 - 523)
  Chinese Stage:           Changlangpuan     (523 - 518)
  Chinese Stage:           Longwangmioan     (518 - 513)
  North American Stage:    Montezuman        (529.5 - 524.5)
  Regional Stage:          Lenian            (524 - 513)
  Russian-Kazakhian Stage: Nemakit-Daldynian (542 - 534)
  Russian-Kazakhian Stage: Tommotian         (534 - 530)
  Russian-Kazakhian Stage: Atdabanian        (530 - 524)
  Russian-Kazakhian Stage: Botomian          (524 - 518.5)
  Russian-Kazakhian Stage: Toyonian          (518.5 - 513)
 

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.