The Jebel Ardouz massif west of Marrakech (M’zoudia region) is one of a few Paleozoic outcrops that arises from the Pliocene-Quaternary Houaz plain (Kebir, Lahalima, Alamma, and Ferjane). Locally, the first tree hills capped by the Devonian limestones have been exploited by the Asmar cement plant since 1974. The Koudiat Ferjane, not yet exploited, consists of undeformed and unmetamorphosed Devonian rocks. The exposed limestones have been sampled in order to determine their conodont microfauna. The samples delivered the best-preserved conodonts of the Jebilet region and attest the only reef structure of the Middle Devonian (Givetian) platform in the area, witnessing the expansion of the Prototethys between Gondwana and Laurussia. For the numerous sedimentological, paleontological, and paleoenvironmental features, the easily accessible Koudiat Ferjane represents a unique geological heritage site. It deserves protection for geotourism and education, both for scientific purposes and for the general public, and must therefore be preserved and protected from the upcoming destruction.

马拉喀什（M'zoudia地区）以西的Jebel Ardouz地块是从上新世-第四纪Houaz平原（基比尔，拉哈利马，阿拉木图和Ferjane）产生的少数古生代露头之一。自1974年以来，就在当地，泥盆纪石灰岩所覆盖的第一批树山已被Asmar水泥厂开采。尚未开采的Koudiat Ferjane由未变形和未变质的泥盆纪岩石组成。已对裸露的石灰石进行了采样以确定其牙形微动物区系。这些样品提供了杰比勒特地区保存最完好的牙形石，并证明了该地区中泥盆纪（吉夫提安）平台中唯一的礁石结构，目睹了原生动物在冈瓦纳和月桂之间的扩张。对于众多的沉积，古生物学和古环境特征，容易到达的Koudiat Ferjane是一个独特的地质遗迹。无论是出于科学目的还是为了公众，都应为地质旅游和教育提供保护，因此必须予以保护和保护，以免遭受即将来临的破坏。