Las comunidades bentónicas (Moluscos y Foraminíferos) del Plioceno inferior de Oued Arjat (Cuenca de Bou Regreg, Marruecos)

  1. J. A. González Delgado 1
  2. J. Civis 1
  3. I. Andrés 1
  1. 1 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

Journal:
Revista de la Sociedad Geológica de España

ISSN: 0214-2708

Year of publication: 1999

Issue Title: Trabajos presentados en el Second Congress R.C.A.N.S., Salamanca 1997

Volume: 12

Issue: 1

Pages: 85-92

Type: Article

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Abstract

In this work we study the Molluscan and Foraminifer assemblages of the upper Oued Arjat section, near Rabat (Morocco), located in the NW of the Bou Regreg basin. 167 taxa of mollusks were determined. The co-occurrence of Globorotalia margaritae and G. puncticulata suggests an Upper Zanclean (Lower Pliocene) age. We describe the taphonomic and palacoecologic characteristics (diversity, dominance, trophisme, interactions and stable isotopes of C and 0). The gastropods Naticids, Turritella tricarinata and Nassariids, the bivalves Chamelea Lamellosa, Corbula gibba and Abra prismatica, the scaphopod Dentalium sexangulum, and the benthic foraminifer Cassidulina laevigata carinata are the most abondant taxa. The malacological and foraminiferal data agree with communities of a circalittoral bathimetry, in outer platforms with distal stormy activity.

Data source: Dialnet