Original paper

Middle Famennian (Late Devonian) ammonoids from the Anti-Atlas of Morocco. 3. Tornoceratids

Korn, Dieter; Bockwinkel, Jürgen; Ebbighausen, Volker


Tornoceratid ammonoids are accessory middle Famennian goniatites in the Anti-Atlas of Morocco. Based on conch morphology and suture line, seven species can be separated.Gundolficeras, Posttornoceras, Discoclymenia and Alpinites can be used as supplementary tools for a goniatite- based biozonation in the sections in the Anti-Atlas of Morocco. Species of these genera show little intraspecific variability. The new species Gundolficeras vescum, Gundolficeras rhombiforme, Gundolficeras reisdorfi, Posttornoceras elegantum, Posttornoceras ouaoufilalense and Discoclymenia pola are described.


morphometricsmoroccoontogenylate devonianbiostratigraphyammonoidea