The Upper Cretaceous rocks are widely distributed and well exposed in south Algeria and consist in beds rich in macrofauna. For the first time, twenty veneroid species (Bivalvia) are systematically described from the upper Cenomanian deposits of the Guir Basin. While three species were reported since long before [Granocardium desvauxi (Coquand), G. productum (J. de C. Sowerby) and Glossus aquilinus (Coquand)]; Lucina fallax Forbes, Crassatella (Rochella) tenuicostata (Seguenza), Protocardia hillana (J. Sowerby), G. productum (J. de C. Sowerby) var. byzacenica (Pervinquière), Arctica cordata (Sharpe), A. humei (Cox), A. inornata (d’Orbigny), A. picteti (Coquand), Tenea delettrei (Coquand), Paraesa faba (J. de C. Sowerby), Meretrix desvauxi (Coquand) were previously unknown from the Cretaceous of Algerian Sahara. Because of reduced degree of preservation, Sphaera cf. corrugata J. Sowerby, Maghrebella cf. forgemoli (Coquand), Maghrebella sp., Granocardium cf. carolinum (d’Orbigny), Protocardia sp. and Meretrix sp. are tentatively determined. The studied material, found in the lower part of the “Calcaires de Sidi Mohamed Ben Bouziane” Formation, evidences palaeobiogeographic affinities occurring over a wide geographical area: from North Africa, southern Europe to Middle East and India. The present study provides new information to the knowledge of the upper Cenomanian palaeobiology of the studied region.

在阿尔及利亚南部，白垩纪上层岩石分布广泛，并且裸露在外，并且存在于大型动物区系中。首次从Guir盆地的上切诺曼期沉积物中系统地描述了20种维纳罗德物种（双壳纲）。虽然三种分别因为很久以前报道Granocardium desvauxi（Coquand），G. productum（J. C.德索尔比）和Glossus aquilinus（Coquand）]; 卢西纳蝗福布斯，Crassatella（Rochella）tenuicostata（Seguenza），Protocardia hillana（J.索尔贝），G. productum（J. C.德索尔比）变种。byzacenica（Pervinquière），ARCTICA鱼腥草（夏普），A. HUMEI（COX），A.褐指藻（D'奥尔比尼），A. picteti（Coquand），泰内亚delettrei（Coquand），Paraesa蚕豆（J. C.德索尔比），文蛤desvauxi（Coquand ）以前是阿尔及利亚撒哈拉白垩纪所不知道的。由于保存程度降低，Sphaera参见。corrugata J. Sowerby，Maghrebella参见。Forgemoli（Coquand），Maghrebella sp.。，Granocardiium cf. carolinum（D'奥尔比尼），Protocardia SP。和Meretrixsp。暂时确定。被研究的材料位于“西迪尔·穆罕默德·本·布济耶尼（Calcaires de Sidi Mohamed Ben Bouziane）”地层的下部，该证据表明古生物地理亲和力发生在广泛的地理区域：从北非，南欧到中东和印度。本研究为所研究区域的上西诺曼尼亚古生物学提供了新的信息。