Description
This is a rare and well-preserved Cenoceras inornatum fossil nautilus from the Bajocian Stage of the Middle Jurassic (~170 million years ago). This specimen was discovered at Hurcott Road Cutting, Ilminster, Somerset, UK, a well-known site for Jurassic marine fossils.
Cenoceras inornatum is an extinct species of nautiloid cephalopods. Unlike ammonites, which feature complex suture patterns, nautiloids like Cenoceras have a simpler internal chambered shell structure. These marine predators used their gas-filled chambers for buoyancy, allowing them to move efficiently through Jurassic seas while preying on smaller marine organisms.
Geological Information:
- Species: Cenoceras inornatum
- Stage: Bajocian, Middle Jurassic (~170 million years ago)
- Formation: Inferior Oolite
- Location: Hurcott Road Cutting, Ilminster, Somerset, United Kingdom
- Depositional Environment: Shallow marine seabed
Fossil Characteristics:
- Well-preserved chambered nautilus shell
- Visible coiling with natural growth lines
- Authentic fossil from a historically significant Jurassic site
- Ideal for fossil collectors, museum displays, or educational study
Additional Information:
All fossils are 100% genuine specimens and come with a Certificate of Authenticity. Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.
This Cenoceras inornatum fossil nautilus is a fantastic addition to any collection, offering insight into the fascinating marine ecosystems of the Jurassic period.








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