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    • Über Umfang und Stellung des Rhaet 

      Wiedmann, J.; Fabricius, F.; Krystyn, L.; Reitner, JoachimORCIDiD; Ulrichs, M. (Newsletters on stratigraphy, 1979)
    • Über Umfang und Stellung des Rhaet 

      Wiedmann, J.; Fabricius, F.; Krystyn, L.; Reitner, JoachimORCIDiD; Ulrichs, M. (Newsletters on stratigraphy, 1979)
      The duration and position of the Rhaetian Stage are di scussed. With the recognition of Rhabdoceras suessi - up to now the index species of the Upper Norian (Sevatian) - in one of the Alpine type sections of the Rhaetian, ...