Description
Mammites nodosoides Ammonite Fossil – Cretaceous Period, Morocco
This striking Mammites nodosoides ammonite fossil originates from the renowned fossil-bearing deposits of Asfla, Goulemima, in the El-Rachidia Province of Morocco. Dating to the Late Cretaceous, specifically the Cenomanian stage (approximately 100–94 million years ago), this specimen represents a classic example of one of the most distinctive ammonite species known from North Africa. Carefully selected for its quality and visual appeal, this genuine fossil is supplied with a Certificate of Authenticity lifetime guarantee card, ensuring confidence for collectors, educators, and enthusiasts alike.
Geological Context and Depositional Environment
The fossil-rich limestones of the Kem Kem and surrounding basins in eastern Morocco are world-famous for their exceptional preservation of marine life from the Cretaceous seas. During the Cenomanian, this region was submerged beneath a warm, shallow epicontinental sea teeming with ammonites, marine reptiles, and diverse invertebrates. Mammites nodosoides is particularly associated with the Cenomanian biozones, often used as an important index fossil for correlating marine strata across Europe and North Africa. The sedimentary environment allowed for excellent preservation of shell morphology, often retaining fine ribbing and nodular ornamentation.
Taxonomy and Classification
Mammites nodosoides belongs to the family Acanthoceratidae within the superfamily Acanthoceratoidea, order Ammonitida. This group is characterised by robust shells with pronounced ornamentation, often including tubercles and ribs. The species was first described by Schlotheim in the early 19th century and remains one of the most recognisable ammonites from the Cretaceous period.
Morphology and Distinctive Features
This species is particularly valued for its bold and sculptural shell form. The whorls are moderately involute with strong, evenly spaced ribs crossing the shell. Prominent nodules (tubercles) appear along the flanks and ventrolateral shoulders, giving the fossil its characteristic “nodose” appearance. These features not only provided structural strength during life but also make Mammites nodosoides highly desirable among collectors today. Specimens in the 110–130mm size range, such as this one, offer an excellent balance of display presence and detail visibility.
Authenticity and Presentation
This fossil is a genuine, natural specimen sourced from Morocco and carefully chosen for quality. The photograph provided represents an example of the actual fossil you will receive, ensuring transparency and consistency. Each piece is unique, with natural variations in colour, preservation, and matrix adding to its individuality. The fossil has been cleaned and prepared to highlight its natural features while maintaining its geological integrity.
Collector Appeal and Display Value
Ammonites like Mammites nodosoides are among the most iconic fossils, symbolising ancient marine life and evolutionary history. Their spiral form and intricate ornamentation make them ideal for display in collections, educational settings, or as a striking natural décor piece. Moroccan ammonites, in particular, are highly sought after due to their preservation quality and historical significance within the fossil trade.
This specimen offers an authentic connection to the Cretaceous seas, combining scientific importance with aesthetic appeal, making it a valuable addition to any fossil collection
