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                            Middle Miocene Sub-Epoch
 
                   From 15.97 +/- 0.05 To 11.608 +/- 0.005 Ma
 
  Start Defined By:  Near first occurrence of planktonic foraminifer 
     Praeorbulina glomerosa and top of magnetic polarity chronozone C5Cn.1n.
  End Defined By:  Last common occurrences of the calcareous nannofossil 
     Discoaster kugleri and the planktonic foraminifer Globigerinoides 
     subquadratus.  Associated with the short normal-polarity subchron C5r.2n.
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- Overlaps With --
  Australian Stage:     Batesfordian  (16.5 - 15.5)
  Australian Stage:     Bairnsdalian  (15 - 10.5)
  Californian Stage:    Relizian      (16.5 - 15.5)
  Californian Stage:    Mohnian       (13.5 - 7.5)
  Japanese Stage:       Kaburan       (13.5 - 11.1)
  New Zealand Stage:    Cliffdenian   (16.5 - 15)
  New Zealand Stage:    Lillburnian   (15 - 11.5)
  North American Stage: Hemingfordian (19 - 15.5)
  North American Stage: Clarendonian  (11.8 - 9)
 
 -- 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)
  Informal Sub-era: Tertiary    (65.5 - 1.806)
 
 -- Preceeded By --
  Sub-Epoch:      Early Miocene (23.03 - 15.97)
  ICS Stage:      Burdigalian   (20.43 - 15.97)
  Japanese Stage: Haranoyan     (18.2 - 15.97)
 
 -- Followed By --
  Sub-Epoch: Late Miocene (11.608 - 5.332)
  ICS Stage: Tortonian    (11.608 - 7.246)
 
 -- Contains the Following Stages --
  ICS Stage:            Langhian     (15.97 - 13.65)
  ICS Stage:            Serravallian (13.65 - 11.608)
  Australian Stage:     Balcombian   (15.5 - 15)
  Californian Stage:    Luisian      (15.5 - 13.5)
  Japanese Stage:       Tozawan      (15.97 - 13.5)
  North American Stage: Barstovian   (15.5 - 11.8)
 

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.