Aratauran New Zealand Stage
 
                          From 199.6 +/- 0.6 To 188 Ma
 
  Start Defined By:  Near lowest occurrence of smooth Psiloceras planorbis 
     ammonite group.
 
  Start Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- Overlaps With --
  ICS Stage: Pliensbachian (189.6 - 183)
 
 -- A Substage of --
  Eon:    Phanerozoic    (542 - -5.5012e-005)
  Era:    Mesozoic       (251 - 65.5)
  Period: Jurassic       (199.6 - 145.5)
  Epoch:  Early Jurassic (199.6 - 175.6)
 
 -- Preceeded By --
  Period:            Triassic      (251 - 199.6)
  Epoch:             Late Triassic (228 - 199.6)
  ICS Stage:         Rhaetian      (203.6 - 199.6)
  Chinese Stage:     Erqiaoan      (209 - 199.6)
  New Zealand Stage: Otapirian     (203 - 199.6)
 
 -- Followed By --
  New Zealand Stage: Uruoan (188 - 169)
 
 -- Contains the Following Stages --
  ICS Stage:      Hettangian   (199.6 - 196.5)
  ICS Stage:      Sinemurian   (196.5 - 189.6)
  Regional Stage: Lotharingian (193.3 - 189.6)
 

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.

© 2003-2005 GeoWhen Database
Prepared By Robert A. Rohde

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