Rare Epipeltoceras bimammatum Ammonite Fossil Upper Oxfordian Jurassic Morocco Genuine

Description Rare Epipeltoceras bimammatum Ammonite Fossil from Morocco This listing offers a rare Epipeltoceras bimammatum ammonite fossil from the Upper Oxfordian stage of the Late Jurassic, discovered in Morocco. Dating back approximately 163 – 157 million years, this specimen represents one of the most significant ammonite lineages of the Oxfordian seas. It is a carefully chosen piece, with excellent detail preserved, and comes from a region long celebrated for its fossil richness. The exact fossil shown in the photos is the one you will receive. The 1 cm scale cube in the image provides accurate size reference. Each fossil in our collection is guaranteed to be 100% genuine, carefully selected, and supplied with a Certificate of Authenticity. Geological Context – Upper Oxfordian, Jurassic The Oxfordian stage is the earliest part of the Late Jurassic, spanning around 163 to 157 million years ago. It was a time of widespread shallow seas and diverse ammonite faunas across Europe and North Africa. The Upper Oxfordian strata in Morocco are particularly well known for their abundance of finely preserved ammonites, many of which played key roles in Jurassic biostratigraphy. Epipeltoceras bimammatum is an ammonite species tied closely to the Bimammatum Zone, a key biozone within the Upper Oxfordian that is widely used in stratigraphic correlation across Europe and North Africa. Its presence is crucial for dating and correlating Jurassic marine deposits. Scientific Classification Genus: Epipeltoceras Species: Epipeltoceras bimammatum Order: Ammonitida Superfamily: Perisphinctoidea Family: Aspidoceratidae Geological Stage: Upper Oxfordian, Late Jurassic (c. 163 – 157 million years ago) Locality: Morocco Morphological Features This species is notable for its distinct ornamentation and ribbing: Strong, well-defined ribs that cross the whorls. Two prominent lateral tubercles (“bi-mammate” form), a characteristic feature from which the species derives its name. Thick, involute shell with a relatively narrow umbilicus. Subtle differences in rib density and tuberculation make it a key index fossil for the Oxfordian. These traits make Epipeltoceras bimammatum one of the most recognisable ammonites of the Late Jurassic, valuable both to collectors and researchers. Paleoecological Significance Like other ammonites, Epipeltoceras bimammatum was a nektonic marine predator, navigating Jurassic seas using its chambered shell for buoyancy. It likely fed on smaller molluscs and crustaceans, playing a role as a mid-level predator within the marine food chain. The depositional environment of Morocco during the Oxfordian was dominated by warm shallow seas, rich in nutrients and life. These seas supported diverse marine communities, including ammonites, belemnites, marine reptiles, and bivalves. The well-preserved ammonite fauna from this region is invaluable in reconstructing Jurassic paleoenvironments. Collector’s Importance Owning a specimen of Epipeltoceras bimammatum is more than acquiring a fossil—it is securing a piece of the Jurassic world, marked by its distinct biozonal importance and striking shell morphology. This specimen is an excellent display piece due to its preservation and characteristic ribbing and tubercles. Collectors value this ammonite both for its scientific importance and its aesthetic beauty, while geologists recognise it as one of the essential index fossils of the Upper Oxfordian. Its rarity outside of professional collections makes it a prized acquisition for anyone with an interest in Jurassic paleontology. Key Details Species: Epipeltoceras bimammatum Age: Upper Oxfordian, Late Jurassic (c. 163 – 157 million years old) Origin: Morocco Family: Aspidoceratidae Distinctive ribbed and tuberculate shell morphology Exact specimen shown in photos with 1 cm scale cube Supplied with a Certificate of Authenticity This rare Epipeltoceras bimammatum ammonite fossil is an outstanding addition for collectors, fossil enthusiasts, and researchers alike, offering both scientific significance and natural beauty from the Jurassic seas of Morocco.