Vascoceras Ammonite Half Fossil B Grade from the Cretaceous of Nigeria Genuine with COA

Authentic Vascoceras Ammonite Half – B Grade, Cretaceous

This listing features a genuine Vascoceras ammonite half fossil, classified as B Grade, from the Cretaceous Period, sourced in Nigeria. The specimen has been carefully chosen for its educational and display value, offering clear insight into the internal structure and natural form of this distinctive ammonite genus. The photographs show the exact fossil you will receive, with full sizing details provided in the listing images. As with all our fossils, this specimen is 100% genuine and comes with a Certificate of Authenticity.

Geological Age and Setting – Cretaceous Seas of West Africa

The Cretaceous Period (approximately 145–66 million years ago) was a time of extensive shallow seas and high marine biodiversity. During this era, large areas of what is now West Africa, including Nigeria, were submerged beneath warm tropical oceans. These seas supported a rich assemblage of marine life, including abundant ammonites that thrived as active predators and scavengers.

Fine marine sediments settled on the seabed, rapidly burying shells after death. Over millions of years, these sediments lithified and preserved ammonites in three dimensions. Nigerian Cretaceous ammonites are well known for their robust forms and striking internal chamber structures when sectioned.

Fossil Type and Genus – Vascoceras

Vascoceras is a well-recognised genus of Cretaceous ammonite, belonging to the order Ammonitida. It is particularly valued for its bold shell form and clear internal septa, which are often revealed in halved specimens.

Characteristic features of Vascoceras include:

• Thick, involute shell coiling, producing a solid appearance

• Broad whorl section, giving the ammonite substantial mass

• Relatively smooth to gently ornamented exterior, depending on species

• Complex internal chambering, clearly visible in cut halves

• Distinct septal patterns, illustrating buoyancy adaptation

This half ammonite format exposes the internal structure, making it especially useful for educational purposes and for collectors who appreciate the anatomical complexity of ammonites.

B Grade Classification – What It Means

This specimen is classified as B Grade, indicating that while it may show natural imperfections such as partial shell loss, uneven edges, or incomplete symmetry, it remains a genuine, stable, and visually informative fossil. B Grade ammonites are ideal for collectors who value authenticity and geological insight over cosmetic perfection.

Such specimens are particularly popular for:

• Educational and teaching collections

• Hands-on study of ammonite anatomy

• Affordable entry into fossil collecting

• Natural, unaltered display pieces

Nigeria – An Important Cretaceous Ammonite Source

Nigeria is a well-established source of Cretaceous ammonites, particularly Vascoceras, which is widely collected and studied from the region. Fossils from this area contribute to understanding Cretaceous marine faunas of the ancient Tethys Ocean and are represented in both private and institutional collections worldwide.

Your Genuine Fossil Specimen

• Genus: Vascoceras

• Fossil Type: Ammonite (half)

• Grade: B Grade

• Geological Age: Cretaceous Period

• Locality: Nigeria

• Authenticity: 100% genuine fossil with Certificate of Authenticity

• Condition: Stable, natural specimen with visible internal structure

• Sizing: Full measurements shown in listing photographs

• Exact Specimen Shown: You will receive the fossil pictured

This Vascoceras ammonite half from Nigeria offers an authentic and educational glimpse into Cretaceous marine life. Its exposed internal structure, genuine provenance, and accessible grading make it a meaningful addition to fossil collections, study displays, and natural history showcases.