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Onchosaurus numidus Fossil Rostral Spine, Albian Cretaceous Kem-Kem Morocco
Onchosaurus numidus Fossil Rostral Spine, Albian Cretaceous Kem-Kem Morocco - Image 2

Onchosaurus numidus Fossil Rostral Spine, Albian Cretaceous Kem-Kem Morocco

Original price was: £9.60.Current price is: £7.68.

Onchosaurus numidus Rostral Spine Fossil – Albian, Cretaceous: Kem Kem Basin, Morocco

This listing is for an exceptionally rare Onchosaurus numidus fossil rostral spine, dating back to the Albian stage of the Cretaceous Period (~113-100 million years ago). This incredible specimen originates from the Kem Kem Basin, Morocco, one of the most famous fossil-bearing formations known for its rich and diverse vertebrate assemblage.

Species Information – Onchosaurus numidus

Onchosaurus numidus is a member of the Sclerorhynchidae, an extinct group of sawfish-like rays that thrived during the Cretaceous. Unlike modern sawfish, which have cartilage-based skeletons, Onchosaurus had bony rostral spines, which allowed for much better fossilization. These spines were lined with sharp denticles and used as a predatory tool for slashing through schools of fish or scaring off larger marine reptiles.

The discovery of Onchosaurus fossils in the Kem Kem Beds suggests that it inhabited the warm, shallow waters of the ancient Tethys Sea, coexisting with apex predators such as Spinosaurus, Carcharodontosaurus, and Mawsonia (a giant coelacanth fish).

Geological Context – Kem Kem Formation

The Kem Kem Beds of Morocco represent an extensive fossil-rich formation, deposited during the Albian-Cenomanian stages of the Cretaceous Period (~113-93 million years ago). This region, composed of sandstone and mudstone, preserves a dynamic river system where various Cretaceous creatures thrived. The fossilized remains of Onchosaurus numidus are relatively rare compared to other vertebrates found in the formation, making this a highly sought-after specimen.

Specimen Details

  • Fossil Type: Rostral Spine (Serrated Sawfish Spine)
  • Scientific Name: Onchosaurus numidus
  • Age: Albian Stage (~113-100 million years ago)
  • Formation: Kem Kem Beds
  • Location: Kem Kem Basin, Morocco
  • Condition: Well-preserved, with visible serrations and surface detail

Why Buy From Us?

✔ 100% Genuine Fossil – Authentic Onchosaurus numidus rostral spine

✔ Certificate of Authenticity Included

✔ Carefully Selected & Prepared – Comes from the prestigious Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

✔ Scale Cube (1cm) for Size Reference – Please refer to the images for exact sizing

This is a rare and scientifically significant fossil, perfect for collectors, museums, or anyone fascinated by prehistoric marine life. Don’t miss the opportunity to own a piece of Cretaceous history!

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Description

Onchosaurus numidus Fossil Rostral Spine

This collectible fossil specimen is identified as an Onchosaurus numidus rostral spine from the Albian stage of the Cretaceous and the Kem-Kem basin of Morocco. Its distinctive identification, geological age and locality make it an appealing addition to fossil collections, natural history displays and educational geology collections.

Fossil Identification

The specimen is identified as Onchosaurus numidus. The product is specifically described as a fossil rostral spine, making it a notable example of fossilised vertebrate anatomy. A rostral spine is a projecting anatomical structure associated with the front or rostral region of an animal, and examples such as this are valued by collectors for their recognisable form and connection to prehistoric life.

Geological Age

This fossil is associated with the Albian, a stage within the Cretaceous Period. The Cretaceous is one of the major divisions of geological time and is widely recognised for its rich fossil record and exceptionally diverse prehistoric fauna. The Albian represents a specific interval within that period, giving this specimen a more focused geological context than a general Cretaceous identification alone.

Locality

The specimen comes from the Kem-Kem basin in Morocco. The Kem-Kem region is well known among fossil collectors for its important fossil-bearing deposits and for specimens representing a wide range of prehistoric organisms. A Moroccan Kem-Kem fossil can provide an engaging focal point for displays centred on palaeontology, Cretaceous life and North African fossil localities.

Collector and Display Appeal

With its named identification, defined Cretaceous age and Kem-Kem basin locality, this Onchosaurus numidus rostral spine is suited to collectors who enjoy taxonomically identified fossils and specimens with a clear geological setting. It can be displayed in a cabinet, study, classroom collection or natural history arrangement. The specimen also offers an accessible way to discuss fossil identification, geological stages and the preservation of anatomical structures through deep time.

The photograph shows the actual specimen you will receive.

Sizing Information

Full sizing is shown in the photographs. Please use the photographs as the visual reference for the specimen’s scale and presentation when considering it for a collection or display.

Certificate of Authenticity

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

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