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Les ostracodes des « Couches Rouges » du synclinal d’Aït Attab, Haut Atlas Central, Maroc : systématique, biostratigraphie, paléoécologie, paléobiogéographie |
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| Authors: | Bernard Andreu Jean-Paul ColinHamid Haddoumi André Charrière |
| Institution: | a Laboratoire des mécanismes de transfert en géologie (LMTG), université Paul-Sabatier, Toulouse-III, 39, allées Jules-Guesde, 31000 Toulouse, France b 3, impasse des Biroulayres, 33610 Cestas, France c Département de géologie, faculté des sciences, université Mohamed-I, Oujda, Maroc |
| Abstract: | Ostracode assemblages, collected in the continental “Red Beds” of the Central High Atlas, Morocco, consist of 35 species, belonging to 17 genera, four of which are new and described herein. They allow to assign the lower member of the Iouaridène formation to the Upper Jurassic (?)-Upper Hauterivian and the Jbel Sidal formation to the Upper Hauterivian-Lower Aptian. Ostracode assemblages characterize lacustrine (freshwater) and lagoonal (oligo to mesohaline) environments. On the basis of limnic and lagoonal species, faunal connections are proposed for the Barremian-Aptian between Morocco and the Iberian Peninsula. |
| Keywords: | Ostracodes Jurassique supé rieur Cré tacé infé rieur Biostratigraphie Palé oenvironnements Maroc |
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