GeoWhen Database  

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                          Longobardian Regional Stage
 
                           From 231.4 To 228 +/- 2 Ma
 
  End Defined By:  Near first occurrence of the ammonoids Daxatina or 
     Trachyceras, and of the conodont Metapolygnathus polygnathiformis.
 
  End Based On:  Gradstein, Ogg, Smith, _A Geologic Time Scale 2004_
 
 -- A Substage of --
  Eon:               Phanerozoic     (542 - -5.5012e-005)
  Era:               Mesozoic        (251 - 65.5)
  Period:            Triassic        (251 - 199.6)
  Epoch:             Middle Triassic (245 - 228)
  ICS Stage:         Ladinian        (237 - 228)
  New Zealand Stage: Kaihikuan       (232 - 225)
 
 -- Preceeded By --
  Regional Stage: Fassanian (237 - 231.4)
 
 -- Followed By --
  Epoch:          Late Triassic (228 - 199.6)
  ICS Stage:      Carnian       (228 - 216.5)
  Chinese Stage:  Bananian      (228 - 219)
  Regional Stage: Julian        (228 - 225)
 

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.