RARE: Kamerunoceras turoniense Fossil Ammonite – Turonian, Cretaceous – Bourges, France | Authentic Ammonite Fossil | COA Included

Description

This listing features a RARE fossil ammonite specimen of Kamerunoceras turoniense, beautifully preserved and discovered in Bourges, France, from the Turonian stage of the Late Cretaceous. This genus is a key representative of mid-Cretaceous ammonite faunas and holds high value for collectors and palaeontologists alike.

As always, this is a 100% genuine fossil, and the exact specimen shown in the photographs is the one you will receive. The fossil is carefully selected for quality and is accompanied by a Certificate of Authenticity. For full sizing, please refer to the photo with the 1cm scale cube.

Fossil Overview:

• Species: Kamerunoceras turoniense
• Common Name: Fossil Ammonite
• Geological Period: Cretaceous
• Stage: Turonian (~93.9 to 89.8 million years ago)
• Locality: Bourges, Centre-Val de Loire, France
• Preservation: External mould with some shell detail in natural matrix

Geological Context & Depositional Environment:

This fossil originates from marine sediments laid down during the Turonian, a time when Europe was submerged beneath a warm, shallow inland sea. The area around Bourges represents part of a carbonate platform that preserved a diverse array of marine organisms.

The depositional environment was likely a low-energy offshore shelf, rich in plankton and other marine life that supported nektonic ammonites such as Kamerunoceras. These open-marine sediments, typically chalky or marly limestones, provided ideal conditions for fossilisation.

Biozone Significance:

Kamerunoceras turoniense is indicative of the Upper Turonian ammonite zones, potentially within the Collignoniceras woollgari or Subprionocyclus neptuni zones, depending on locality. These biozones are used for high-resolution correlation of Turonian strata across Western Europe and North Africa.

Taxonomy & Classification:

• Phylum: Mollusca
• Class: Cephalopoda
• Subclass: Ammonoidea
• Order: Ammonitida
• Superfamily: Acanthoceratoidea
• Family: Acanthoceratidae
• Genus: Kamerunoceras
• Species: turoniense

Morphological Features:

Kamerunoceras is characterised by:

• Strong ribbing across the whorls
• Presence of prominent tubercles or nodes along the ventrolateral margins
• Moderately evolute coiling with exposed inner whorls
• A compressed, somewhat involute shell profile
• A wide ventral area that may show weak keel development

These features reflect a nektonic (actively swimming) lifestyle, typical of mid-Cretaceous ammonites.

Notable Information:

• Kamerunoceras is an important Turonian index fossil
• Shows global distribution from Europe to Africa and parts of the Americas
• Fossils of this genus are relatively scarce in the commercial market
• Ideal for collectors seeking rare ammonites from the mid-Cretaceous
• Scientifically valuable for correlation and palaeobiogeography

Why Buy From Us?

• All specimens are 100% genuine and naturally preserved fossils
• Each purchase includes a Certificate of Authenticity
• The fossil shown in the photos is the exact one you will receive
• Carefully packed and shipped promptly with professional service

This rare Kamerunoceras turoniense ammonite is a striking example of Cretaceous marine life and an excellent addition to any fossil collection, museum exhibit, or educational resource.