GeoWhen Database  

Introduction

Geologic Timeline
(No Stages)

Geologic Timeline
(With Stages)

A-Z Stage List

Regional Information

Download Files

  
                            Maastrichtian ICS Stage
                     (Navarroan, Maestrichtian, Haumurian)
 
                      From 70.6 +/- 0.6 To 65.5 +/- 0.3 Ma
 
  Start Defined By:  Mean of 12 biostratigraphic criteria of equal importance.  
     Closely above is lowest occurrence of ammonite Pachydiscus neubergicus.  
     Boreal proxy is lowest occurrence of belemnite Belemnella lanceolata.
  End Defined By:  Iridium Anomaly.  Associated with a major extinction horizon 
     (foraminifers, calcareous nannofossils, dinosaurs, etc.)
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
  Global Stratotype Section and Point:  Grande Carrière quarry, 
     Tercis-les-Bains, Landes province, SW France
 
 -- A Substage of --
  Eon:            Phanerozoic     (542 - -5.5012e-005)
  Era:            Mesozoic        (251 - 65.5)
  Period:         Cretaceous      (145.5 - 65.5)
  Epoch:          Late Cretaceous (99.6 - 65.5)
  European Epoch: Senonian        (89.3 - 65.5)
  Japanese Stage: Hetonian        (77.1 - 65.5)
 
 -- Preceeded By --
  ICS Stage:      Campanian (83.5 - 70.6)
  Regional Stage: Fuvelian  (77 - 70.6)
 
 -- Followed By --
  Era:                  Cenozoic        (65.5 - -5.5012e-005)
  Period:               Paleogene       (65.5 - 23.03)
  Epoch:                Paleocene       (65.5 - 55.8)
  Sub-Epoch:            Early Paleocene (65.5 - 61.7)
  ICS Stage:            Danian          (65.5 - 61.7)
  Informal Sub-era:     Tertiary        (65.5 - 1.806)
  New Zealand Stage:    Teurian         (65.5 - 56.5)
  North American Stage: Puercan         (65.5 - 62.5)
 
 -- Contains the Following Stages --
  Regional Stage: Begudian  (70.6 - 68)
  Regional Stage: Rognacian (68 - 65.5)
 

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.