Ammonoids from the Dalle des Iridet of the Mouydir and Ahnet (Central Sahara) and the Formation d'Hassi Sguilma of the Saoura Valley (Late Tournaisian–Early Viséan; Algeria)

Four ammonoid species are described from the Early Carboniferous (Mississippian) Iridet Formation of the Ahnet and Mouydir (Central Sahara, Algeria); three of which are new: <i>Eurites temertassetensis</i> n. sp., <i>Trimorphoceras teguentourense</i> n. sp., and <i>Trimorphoceras azzelmattiense</i> n. sp. The species can be attributed to the North African <i>Ammonellipsites-Merocanites</i> Assemblage (<i>Fascipericyclus-Ammonellipsites</i> Genus Zone; Late Tournaisian to Early Viséan). Additionally, the two new species <i>Ammonellipsites sguilmensis</i> n. sp. and <i>Muensteroceras beniabbesense</i> n. sp. are described from the time equivalent Hassi Sguilma Formation of the Saoura Valley (north-western Algeria). <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200900012" target="_blank">10.1002/mmng.200900012