Fossil Belemnite (Belemnitella mucronata) – Coniacian, Upper Cretaceous, Overstrand Norfolk UK – Genuine + COA

Description

A fossil belemnite (Belemnitella mucronata), from the Coniacian Stage of the Upper Cretaceous, collected at Overstrand, Norfolk, United Kingdom. This specimen represents the internal guard (rostrum) of an extinct marine cephalopod, closely related to modern squid and cuttlefish. The fossil pictured is the exact one you will receive, and it is supplied with a Certificate of Authenticity.

Fossil Type & Species:

• Type: Belemnite (extinct marine cephalopod)
• Species: Belemnitella mucronata
• Order: Belemnitida
• Superfamily: Belemnitellacea
• Family: Belemnitellidae

Geological Context:

• Period: Cretaceous
• Epoch/Stage: Upper Cretaceous – Coniacian (approx. 89.8 to 86.3 million years ago)
• Biozone: Associated with Coniacian belemnite faunas widely used in European stratigraphy
• Formation: White Chalk Subgroup (Coniacian chalk deposits)
• Depositional Environment: Shallow marine chalk seas with fine calcareous sedimentation, excellent for fossil preservation

Locality:

• Region: Overstrand, Norfolk, United Kingdom

Morphology & Features:

• Robust, elongated rostrum with characteristic mucronate (pointed) apex
• Smooth to faintly striated surface, typical of the species
• Represents the internal skeletal element of the animal, used for balance and buoyancy control
• Excellent preservation with clear external definition

Scientific Notes:

• Belemnitella mucronata is one of the most stratigraphically important belemnite species of the Upper Cretaceous
• Widely used as an index fossil across northern Europe, particularly in Coniacian–Campanian chalk sequences
• First described in the 18th century and later refined by Blainville and others in systematic cephalopod studies

Notable Details:

• Classic British Coniacian belemnite from a historic Norfolk chalk locality
• Excellent preservation of the rostrum structure
• 100% genuine, natural fossil – no restoration
• Scale Reference: Each square or cube = 1cm. Please see photographs for accurate sizing

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen is supplied with a Certificate of Authenticity. The fossil pictured is the exact one you will receive.

This Belemnitella mucronata belemnite is an excellent example from the Coniacian Chalk of Overstrand, Norfolk – a fine addition for collectors, researchers, or natural history displays.