Rare cenoceras inornatum fossil nautilus – upper toarcian, jurassic – ilminster, uk – coa

Description

This is a rare and well-preserved Cenoceras inornatum fossil nautilus from the Upper Toarcian stage of the Jurassic (~180 million years ago). It was discovered in Ilminster, United Kingdom, a significant fossil locality known for its exceptional preservation of marine life from the Early Jurassic seas.

Cenoceras inornatum belongs to the extinct nautiloid family Nautilidae. Unlike ammonites, which had complex suture patterns, nautiloids like Cenoceras feature simpler internal chambers used for buoyancy control. These ancient marine cephalopods were slow-moving predators that thrived in warm, shallow Jurassic seas.

The Toarcian Stage is a well-documented geological period, marking an important evolutionary phase in marine ecosystems. The fossil-rich deposits of Ilminster have yielded a diverse array of marine fossils, including ammonites, bivalves, and nautiloids, making it an essential site for Jurassic paleontology.

Geological Information:

• Species: Cenoceras inornatum
• Stage: Upper Toarcian, Early Jurassic (~180 million years ago)
• Location: Ilminster, United Kingdom
• Depositional Environment: Shallow marine seabed with rich cephalopod diversity

Fossil Characteristics:

• Well-preserved chambered nautilus shell
• Visible growth lines and suture details
• Smooth coiling with characteristic nautiloid shape
• A significant specimen from a well-documented Jurassic 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 Cenoceras inornatum fossil nautilus is a must-have for collectors, cephalopod enthusiasts, and those interested in Jurassic marine life.