Description Rare Myliobatis Fossil Ray Dental Plate This listing offers a rare Myliobatis fossil ray dental plate from the Phosphate Deposits of the Oulad Abdoun Basin, Morocco, dating to the Paleocene epoch (approx. 66 – 56 million years ago). Myliobatis, commonly known as eagle rays, were cartilaginous fish within the order Myliobatiformes, closely related to stingrays and manta rays. Unlike bone, cartilage is rarely preserved; however, the dental plates of these rays are composed of more durable material, enabling them to survive through deep geological time. This specimen represents an exceptional glimpse into the feeding structures of one of the most successful groups of rays from the early Paleogene seas. Geological Provenance – Oulad Abdoun Basin The Oulad Abdoun Basin in Morocco is one of the richest fossil-bearing phosphate basins in the world. The phosphate deposits were formed in a marine shelf environment, where abundant nutrients supported a highly diverse ecosystem. These layers have yielded a remarkable array of vertebrate fossils, including sharks, rays, bony fish, reptiles, and marine mammals, as well as invertebrates. The Myliobatis dental plate offered here comes from the Paleocene strata, making it part of one of the most scientifically important fossil Lagerstätten for understanding post-Cretaceous marine recovery after the extinction of the dinosaurs. Species Profile – Myliobatis (Eagle Ray) The genus Myliobatis belongs to the Family Myliobatidae, within the Superorder Batoidea. These rays are instantly recognizable by their broad pectoral fins and characteristic flattened bodies, adapted for swimming gracefully over shallow sea beds. The dental plates of Myliobatis are a defining feature: composed of broad, interlocking pavement-like teeth, they were perfectly evolved for crushing hard-shelled prey such as mollusks, crustaceans, and echinoderms. This morphology sets them apart from shark teeth, making dental plates distinctive and highly sought after by fossil collectors. Morphology and Notable Traits The dental plate shows the classic pavement structure of eagle rays, formed by multiple fused teeth arranged in rows. These teeth provided both strength and durability for breaking open shells on the seafloor. The plate demonstrates excellent preservation, with natural surface texture visible, revealing the ancient feeding adaptations of this ray. Myliobatis’ dentition is of particular scientific interest because it represents one of the most effective evolutionary solutions for durophagy (hard-shelled prey feeding) in marine vertebrates. Scientific and Collecting Significance The Myliobatis fossil ray dental plate is not only a fascinating specimen for collectors but also a valuable paleontological record of Paleocene marine life. Dental plates like these are important to the study of evolutionary biology, offering evidence of how cartilaginous fish diversified after the mass extinction at the end of the Cretaceous. The Oulad Abdoun Basin remains one of the most productive sources for these fossils, providing researchers and enthusiasts alike with well-preserved specimens. Collectors value them for their rarity, distinctive form, and the direct connection they provide to an ancient ocean ecosystem. Authenticity and Presentation Every fossil we supply is 100% genuine and comes with a Certificate of Authenticity. The specimen in the photographs is the exact fossil you will receive, ensuring full transparency. A 1 cm scale cube is shown in the images to provide accurate sizing. This fossil has been carefully chosen for its preservation and display quality, making it an ideal addition to private collections, educational use, or as a striking natural history display piece. This rare Myliobatis fossil ray dental plate from the Paleocene Oulad Abdoun Basin, Morocco is a remarkable example of evolutionary adaptation and geological preservation. A genuine fossil with outstanding detail, it represents both scientific value and natural beauty, making it an exceptional acquisition for collectors and enthusiasts.
