This is a rare and well-preserved fossil of Cenoceras lineatus, a species of extinct nautiloid cephalopod from the Inferior Oolite Formation, Bajocian stage of the Middle Jurassic (~170 million years ago), found in Oxfordshire, United Kingdom.

Cenoceras is a genus of nautiloids that thrived in Jurassic seas, possessing a smooth, coiled shell with faint growth lines and a streamlined form. Unlike ammonites, nautiloids had simpler internal chamber structures and lacked complex ribbing, making them efficient swimmers and skilled hunters.

This specimen originates from the Inferior Oolite Formation, a significant marine deposit from the Bajocian period. This formation is known for its rich diversity of cephalopods, including ammonites and nautiloids, making this fossil a valuable addition to any collection.

Geological Information:

• Species: Cenoceras lineatus
• Formation: Inferior Oolite
• Stage: Bajocian, Middle Jurassic (~170 million years ago)
• Location: Oxfordshire, United Kingdom
• Depositional Environment: Warm shallow marine seabed

Fossil Characteristics:

• Rare Cenoceras fossil with excellent preservation
• Distinct coiled shell with visible growth lines
• Well-defined chambered structure
• Smooth shell typical of Jurassic nautiloids

Key Features:

• Authentic fossil from Oxfordshire, UK (Middle Jurassic, Bajocian)
• Exceptional detail and natural preservation
• Ideal for fossil collectors, researchers, and museum displays
• From the renowned Alice Purnell Collection
• 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.