Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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Kosmoceras Ammonite Fossil – Oxford Clay Jurassic UK, Cotswold Water Park, Genuine Specimen
Kosmoceras Ammonite Fossil – Oxford Clay Jurassic UK, Cotswold Water Park, Genuine Specimen - Image 2
Kosmoceras Ammonite Fossil – Oxford Clay Jurassic UK, Cotswold Water Park, Genuine Specimen - Image 3

Kosmoceras Ammonite Fossil – Oxford Clay Jurassic UK, Cotswold Water Park, Genuine Specimen

Original price was: £156.00.Current price is: £124.80.

Offering a superb and scientifically intriguing Kosmoceras Ammonite Fossil from the Oxford Clay Formation, dating to the Lower Callovian Stage of the Middle Jurassic, approximately 164–166 million years ago. This ammonite was recovered from Cotswold Water Park, Gloucestershire, UK, an area known for rich Jurassic marine deposits.

The genus Kosmoceras is recognised for its ornate shell sculpture and ribbing, representing an extinct group of marine cephalopods related to modern squid and octopuses. This particular fossil is well-preserved and exhibits excellent detail of its original shell morphology.

Fossil Type: Ammonite (extinct marine cephalopod)

Genus: Kosmoceras

Geological Age: Middle Jurassic – Lower Callovian Stage

Formation: Oxford Clay Formation

Depositional Environment: The Oxford Clay was deposited in a low-energy, shallow marine shelf environment under oxygen-poor conditions. These anoxic bottom waters favoured the preservation of fine shell details and a diverse marine fauna including ammonites, belemnites, bivalves, marine reptiles, and more.

Morphological Features:

  • Coarsely ribbed, evolute shell structure
  • Pronounced nodes and tubercles along ribbing
  • In some specimens, faint keel and whorl overlap evident

Notable:

  • Classic example of Kosmoceras from a recognised Oxford Clay locality
  • Excellent preservation and fine detail
  • Suitable for scientific study, collector display, or educational purposes
  • Actual specimen photographed – what you see is what you receive

Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Please refer to the included scale in the photograph for size reference – each square or cube is 1cm.

 

This fine Kosmoceras ammonite from the Oxford Clay of Gloucestershire captures the grandeur of Middle Jurassic marine ecosystems. A genuine and captivating addition to any fossil collection.

(Actual as seen)

Only 1 left in stock

SKU: VF0183 Category:

Description

Offering a superb and scientifically intriguing Kosmoceras Ammonite Fossil from the Oxford Clay Formation, dating to the Lower Callovian Stage of the Middle Jurassic, approximately 164–166 million years ago. This ammonite was recovered from Cotswold Water Park, Gloucestershire, UK, an area known for rich Jurassic marine deposits.

The genus Kosmoceras is recognised for its ornate shell sculpture and ribbing, representing an extinct group of marine cephalopods related to modern squid and octopuses. This particular fossil is well-preserved and exhibits excellent detail of its original shell morphology.

Fossil Type: Ammonite (extinct marine cephalopod)

Genus: Kosmoceras

Geological Age: Middle Jurassic – Lower Callovian Stage

Formation: Oxford Clay Formation

Depositional Environment: The Oxford Clay was deposited in a low-energy, shallow marine shelf environment under oxygen-poor conditions. These anoxic bottom waters favoured the preservation of fine shell details and a diverse marine fauna including ammonites, belemnites, bivalves, marine reptiles, and more.

Morphological Features:

  • Coarsely ribbed, evolute shell structure
  • Pronounced nodes and tubercles along ribbing
  • In some specimens, faint keel and whorl overlap evident

Notable:

  • Classic example of Kosmoceras from a recognised Oxford Clay locality
  • Excellent preservation and fine detail
  • Suitable for scientific study, collector display, or educational purposes
  • Actual specimen photographed – what you see is what you receive

Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. Please refer to the included scale in the photograph for size reference – each square or cube is 1cm.

 

This fine Kosmoceras ammonite from the Oxford Clay of Gloucestershire captures the grandeur of Middle Jurassic marine ecosystems. A genuine and captivating addition to any fossil collection.

Additional information

Era

Jurassic
Origin

United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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