Late Cretaceous (Cenomanian-Turonian) ammonites from southern Morocco and south western Algeria

  • Christian Meister
  • André Piuz
  • Lionel Cavin
  • Larbi Boudad
  • Flavio Bacchia
  • El M. Ettachfini
  • M. Benyoucef
Original Paper

DOI: 10.1007/s12517-016-2714-1

Cite this article as:
Meister, C., Piuz, A., Cavin, L. et al. Arab J Geosci (2017) 10: 1. doi:10.1007/s12517-016-2714-1

Abstract

On the basis of nine lithostratigraphical profiles, 23 cephalopods taxa (nautilus and ammonites) are described from the Preafrican Trough and the Kem Kem region. Among them, a new species is proposed: Spathites (Jeanrogericeras) asflaensis nov. sp. This fauna is placed in its biostratigraphical framework and correlated with the standard zonation of the late Cenomanian–early Turonian. Moreover, stratigraphic correlations are proposed for the whole Maghreb from the Tarfaya Basin in the west to central Tunisia in the east. Selected taxa reveal the paleogeographical context of the western Tethys; a complex distribution of emerged areas and epicontinental seas impacted by an important marine trangression that constantly modified the costaline.

Keywords

Ammonites Cretaceous Cenomanian–Turonian Biostratigraphy Taxonomy Africa Morocco Algeria 

Copyright information

© Saudi Society for Geosciences 2016

Authors and Affiliations

  • Christian Meister
    • 1
  • André Piuz
    • 1
  • Lionel Cavin
    • 1
  • Larbi Boudad
    • 2
  • Flavio Bacchia
    • 3
  • El M. Ettachfini
    • 4
  • M. Benyoucef
    • 5
  1. 1.Département de Géologie et de PaléontologieMuséum d’Histoire NaturelleGenève 6Switzerland
  2. 2.Faculté des SciencesUniversité Moulay IsmailMeknèsMorocco
  3. 3.TriestreItaly
  4. 4.Department of GeologyChouaïb Doukkali UniversityEl JadidaMorocco
  5. 5.Faculté des Sciences de la Nature et de la Vie, Département des Sciences de la Terre et de l’UniversUniversité de MascaraMascaraAlgeria