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                              Aquitanian ICS Stage
 
                    From 23.03 +/- 0.05 To 20.43 +/- 0.05 Ma
 
  Start Defined By:  Base of magnetic polarity chronozone C6Cn.2n; lowest 
     occurrence of planktonic foraminifer Paragloborotalia kugleri; near 
     extinction of calcareous nannofossil Reticulofenestra bisecta (base Zone 
     NN1).
  End Defined By:  Near lowest occurrence of planktonic foraminifer 
     Globigerinoides altiaperturus or top of magnetic polarity chronozone C6An.
 
  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:  Lemme-Carrosio section, Carrosio 
     village, north of Genoa, Italy
 
 -- Overlaps With --
  Californian Stage: Zemorrian     (33.5 - 22)
  Californian Stage: Saucesian     (22 - 16.5)
  New Zealand Stage: Hutchinsonian (21 - 20)
 
 -- A Substage of --
  Eon:                  Phanerozoic   (542 - -5.5012e-005)
  Era:                  Cenozoic      (65.5 - -5.5012e-005)
  Period:               Neogene       (23.03 - -5.5012e-005)
  Epoch:                Miocene       (23.03 - 5.332)
  Sub-Epoch:            Early Miocene (23.03 - 15.97)
  Australian Stage:     Longfordian   (27.5 - 16.5)
  Informal Sub-era:     Tertiary      (65.5 - 1.806)
  North American Stage: Arikareean    (30.5 - 19)
 
 -- Preceeded By --
  Period:            Paleogene      (65.5 - 23.03)
  Epoch:             Oligocene      (33.9 - 23.03)
  Sub-Epoch:         Late Oligocene (28.4 - 23.03)
  ICS Stage:         Chattian       (28.4 - 23.03)
  New Zealand Stage: Waitakian      (27 - 23.03)
 
 -- Followed By --
  ICS Stage: Burdigalian (20.43 - 15.97)
 
 -- Contains the Following Stages --
  New Zealand Stage: Otaian (23.03 - 21)
 

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

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2003-2005 GeoWhen Database
Prepared By Robert A. Rohde


This page was last updated on Tuesday, January 18, 2005.