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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CADOCERAS Fossil Ammonite Jurassic Oxford Clay Callovian Gloucestershire UK

£21.60

This beautiful and scientifically important Cadoceras ammonite fossil comes from the Oxford Clay Formation of Gloucestershire, UK, and dates to the Lower Callovian stage of the Middle Jurassic. This carefully selected specimen was professionally collected and prepared, and comes with a Certificate of Authenticity. The exact fossil shown in the photographs is the one you will receive. A 1cm scale cube is included for size reference.

Cadoceras ammonites are iconic representatives of the Middle Jurassic and are relatively rare in complete, display-worthy form. This specimen displays the classic features of the genus and is an excellent addition to any fossil collection.

Scientific & Geological Information:

  • Genus: Cadoceras (identified by Fischer, 1837)
  • Family: Cadoceratidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Geological Stage: Lower Callovian (Middle Jurassic)
  • Formation: Oxford Clay Formation
  • Zone: Likely within the Macrocephalites Zone
  • Biozone: Possibly Cadoceras elatmae biozone (where applicable)
  • Depositional Environment: Offshore, low-energy marine setting; fine-grained mudstone and clay representing deep, oxygen-poor seafloor conditions
  • Morphology Features: Robust, thick-whorled shell with deep constrictions and bifurcating ribs; typically involute to moderately evolute with strong ribbing and clear ventral groove in mature forms
  • Notable: Cadoceras species are critical for understanding Callovian biostratigraphy and evolutionary trends among Middle Jurassic ammonites. Well-preserved specimens from Gloucestershire are uncommon and highly desirable to collectors.

Why Choose This Fossil?

  • 100% genuine and legally sourced
  • Supplied with a Certificate of Authenticity
  • Prepared and verified by experts
  • Excellent scientific and display value
  • From a well-documented and geologically significant Jurassic site

Shipping & Handling:

  • Carefully packed for safe delivery
  • Worldwide tracked and insured shipping available

Enhance your collection with a genuine piece of Jurassic marine heritage—this authentic Cadoceras fossil ammonite is both a collector’s treasure and a scientifically valuable specimen.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

(Actual as seen)

Only 1 left in stock

SKU: UF3479 Category:

Description

This beautiful and scientifically important Cadoceras ammonite fossil comes from the Oxford Clay Formation of Gloucestershire, UK, and dates to the Lower Callovian stage of the Middle Jurassic. This carefully selected specimen was professionally collected and prepared, and comes with a Certificate of Authenticity. The exact fossil shown in the photographs is the one you will receive. A 1cm scale cube is included for size reference.

Cadoceras ammonites are iconic representatives of the Middle Jurassic and are relatively rare in complete, display-worthy form. This specimen displays the classic features of the genus and is an excellent addition to any fossil collection.

Scientific & Geological Information:

  • Genus: Cadoceras (identified by Fischer, 1837)
  • Family: Cadoceratidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Geological Stage: Lower Callovian (Middle Jurassic)
  • Formation: Oxford Clay Formation
  • Zone: Likely within the Macrocephalites Zone
  • Biozone: Possibly Cadoceras elatmae biozone (where applicable)
  • Depositional Environment: Offshore, low-energy marine setting; fine-grained mudstone and clay representing deep, oxygen-poor seafloor conditions
  • Morphology Features: Robust, thick-whorled shell with deep constrictions and bifurcating ribs; typically involute to moderately evolute with strong ribbing and clear ventral groove in mature forms
  • Notable: Cadoceras species are critical for understanding Callovian biostratigraphy and evolutionary trends among Middle Jurassic ammonites. Well-preserved specimens from Gloucestershire are uncommon and highly desirable to collectors.

Why Choose This Fossil?

  • 100% genuine and legally sourced
  • Supplied with a Certificate of Authenticity
  • Prepared and verified by experts
  • Excellent scientific and display value
  • From a well-documented and geologically significant Jurassic site

Shipping & Handling:

  • Carefully packed for safe delivery
  • Worldwide tracked and insured shipping available

Enhance your collection with a genuine piece of Jurassic marine heritage—this authentic Cadoceras fossil ammonite is both a collector’s treasure and a scientifically valuable specimen.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Additional information

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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