Wordian ICS Stage
 
                      From 268 +/- 0.7 To 265.8 +/- 0.7 Ma
 
  Start Defined By:  Conodont, lowest occurrence of Jinogondolella aserrata.
  End Defined By:  Conodont, lowest occurrence of Jinogondolella postserrata.
 
  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:  Getaway Ledge outcrop, Guadalupe Pass, 
     SE Guadalupe Mountains, Texas, USA
 
 -- A Substage of --
  Eon:               Phanerozoic    (542 - -5.5012e-005)
  Era:               Paleozoic      (542 - 251)
  Period:            Permian        (299 - 251)
  Epoch:             Middle Permian (270.6 - 260.4)
  European Stage:    Kazanian       (270.6 - 260.4)
  New Zealand Stage: Braxtonian     (270.6 - 260.4)
  Regional Stage:    Thuringian     (270.6 - 251)
 
 -- Preceeded By --
  ICS Stage: Roadian (270.6 - 268)
 
 -- Followed By --
  ICS Stage: Capitanian (265.8 - 260.4)
 
 |