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The mitrate Peltocystis cornuta is one the best known and most abundant stylophoran echinoderms in the Lower Ordovician (upper Tremadoc - lower Arenig) of Montagne Noire (southern France). It is here documented outside this region for the first time, in coeval deposits of central Anti-Atlas (Morocco). This report confirms the strong faunal affinities between Montagne Noire and Moroccan assemblages...
Dans le Haut Atlas de Marrakech, la sédimentation s'est effectuée dans deux bassins différents durant l'Arénig–Llanvirn. Dans le bassin du Haut Atlas occidental s'est développé un delta influencé par vagues et tempêtes, alimenté par une source située à l'emplacement actuel du couloir d'Argana et soumis à des fluctuations eustatiques et à la subsidence. Dans le Haut Atlas central se sont développés...
Las formaciones del Ordovicico Medio del Anti-Atlas (sur de Marruecos) han librado un variado registro de trilobites, moluscos, equinodermos, braquiopodos, graptolitos, microfosiles e icnofosiles en alrededor de 180 localidades. Gran parte de ellas fueron descubiertas durante la realizacion de la cartografia geologica a escala 1:200.000 y la mayoria del material paleontologico permanece inedito. En...
A newly discovered locality of an hitherto unknown age, but now estimated to the Late Ordovician, in south-eastern Morocco has yielded numerous specimens of problematic soft-bodied metazoans preserved in coarse sandstones. The excellent preservation of the recovered specimens permits an improved understanding of both the palaeobiology of these Ordovician metazoans and the taphonomic processes associated...
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