GeoWhen Database  

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                        Comanchean North American Stage
 
                          From 127 To 99.6 +/- 0.9 Ma
 
  End Defined By:  Planktonic foraminifer, lowest occurrence of Rotalipora 
     globotruncanoides.
 
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- Overlaps With --
  ICS Stage:         Barremian (130 - 125)
  Japanese Stage:    Aritan    (136.4 - 125)
  Japanese Stage:    Miyakoan  (125 - 96.6)
  New Zealand Stage: Mokoiwian (145.5 - 119)
 
 -- A Substage of --
  Eon:            Phanerozoic      (542 - -5.5012e-005)
  Era:            Mesozoic         (251 - 65.5)
  Period:         Cretaceous       (145.5 - 65.5)
  Epoch:          Early Cretaceous (145.5 - 99.6)
  European Epoch: Gallic           (130 - 89.3)
 
 -- Preceeded By --
  North American Stage: Coahulian (145.5 - 127)
 
 -- Followed By --
  Epoch:             Late Cretaceous (99.6 - 65.5)
  ICS Stage:         Cenomanian      (99.6 - 93.5)
  New Zealand Stage: Ngaterian       (99.6 - 95)
 
 -- Contains the Following Stages --
  ICS Stage:         Aptian    (125 - 112)
  ICS Stage:         Albian    (112 - 99.6)
  New Zealand Stage: Korangian (119 - 110)
  New Zealand Stage: Urutawan  (110 - 104)
  New Zealand Stage: Motuan    (104 - 99.6)
 

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.