Description
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.








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