RARE Eutrephoceras clementinum Fossil Nautilus – Aptian, Cretaceous – Fullers Earth, Baulking, Oxford, UK – COA

Description

This is a rare and well-preserved Eutrephoceras clementinum fossil nautilus from the Lower Aptian stage of the Early Cretaceous (~125 million years ago). It was discovered in the Fullers Earth Quarry, Baulking, Oxford, UK, a well-documented fossil-rich locality.

Eutrephoceras clementinum is an extinct species of nautiloid, belonging to the order Nautilida. Unlike ammonites, nautiloids have simpler suture patterns and more robust shells, making them evolutionary survivors. Nautiluses like Eutrephoceras were slow-moving marine predators that thrived in Cretaceous seas, using their chambered shells for buoyancy control.

The Fullers Earth Formation, a part of the Lower Cretaceous stratigraphy, is composed of soft, fossil-bearing clay and limestone. This formation is well known for preserving a variety of marine fossils, including ammonites, bivalves, and nautiloids, giving insight into the diverse marine life of the Early Cretaceous seas.

Geological Information:

• Species: Eutrephoceras clementinum
• Stage: Lower Aptian, Early Cretaceous (~125 million years ago)
• Formation: Fullers Earth Formation
• Location: Fullers Earth Quarry, Baulking, Oxford, UK
• Depositional Environment: Shallow marine seabed, rich in cephalopods and mollusks

Fossil Characteristics:

• Exceptionally preserved chambered nautilus shell
• Visible growth lines and fine shell details
• Distinctive suture patterns and smooth coiling
• A significant fossil from an important Early Cretaceous site

Additional Information:

All fossils are genuine specimens and come with a Certificate of Authenticity. Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

This Eutrephoceras clementinum fossil nautilus is an excellent addition to any Cretaceous fossil collection, perfect for enthusiasts of cephalopods, marine paleontology, and fossil history.