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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Rare 5" Fossil Ammonite Coeloderoceras ponticum | Jurassic Lower Pliensbachian Somerset UK | Genuine + COA
Rare 5" Fossil Ammonite Coeloderoceras ponticum | Jurassic Lower Pliensbachian Somerset UK | Genuine + COA - Image 2

Rare 5″ Fossil Ammonite Coeloderoceras ponticum | Jurassic Lower Pliensbachian Somerset UK | Genuine + COA

£72.00

Offered for sale is a rare and well-preserved 5-inch fossil ammonite, Coeloderoceras ponticum, from the Lower Pliensbachian Stage of the Early Jurassic Period, collected from Radstock Grove Quarry, Somerset, United Kingdom.

This is a carefully selected, display-grade specimen. The photo shows the actual fossil you will receive. Each scale cube represents 1cm — please see images for full sizing and detail.

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

Geological & Scientific Information:

  • Fossil Type: Ammonite
  • Species: Coeloderoceras ponticum
  • Order: Ammonitida
  • Superfamily: Eoderoceratoidea
  • Family: Coeloceratidae
  • Geological Stage: Lower Pliensbachian (~190.8 – 182.7 million years ago)
  • Biozone: Davoei Zone (Coeloderoceras often found in association with this subzone, especially in Somerset localities)
  • Formation: Lower Lias
  • Locality: Radstock Grove Quarry, Radstock, Somerset, England, UK
  • Depositional Environment: Shallow marine shelf with deposition of dark grey calcareous muds and shales, typical of the Lias Group, laid down under low-energy marine conditions

Morphology & Notable Features:

  • Planispiral, evolute shell with prominent radial ribbing
  • Wide umbilicus, broad whorls with gently rounded flanks
  • Strong, bifurcating ribs that give the shell its distinctive ornamented appearance
  • Well-preserved keel and venter, often slightly flattened
  • The genus Coeloderoceras is known for its robust and heavily ribbed forms, making it highly desirable among collectors of Early Jurassic ammonites

Scientific Significance:

Coeloderoceras ponticum is a biostratigraphically important ammonite genus, especially in British Lias successions. It serves as an indicator species for the Lower Pliensbachian and contributes to the zonal division of this stage in Western Europe.

Originally described in classic 19th-century monographs and expanded upon in British Jurassic studies, it holds importance both as a collector’s fossil and as a stratigraphic marker.

Ideal For:

  • Fossil and ammonite collectors
  • Academic or stratigraphic reference collections
  • Museum or teaching displays
  • Gifts for geology enthusiasts or science lovers

What You Will Receive:

  • The exact Coeloderoceras ponticum fossil shown
  • Certificate of Authenticity
  • Professional, secure packaging to ensure safe delivery

Feel free to contact us if you need further details, fossil ID assistance, or want to expand your collection with similar Early Jurassic specimens.

(Actual as seen)

Only 1 left in stock

SKU: UF4538 Category:

Description

Offered for sale is a rare and well-preserved 5-inch fossil ammonite, Coeloderoceras ponticum, from the Lower Pliensbachian Stage of the Early Jurassic Period, collected from Radstock Grove Quarry, Somerset, United Kingdom.

This is a carefully selected, display-grade specimen. The photo shows the actual fossil you will receive. Each scale cube represents 1cm — please see images for full sizing and detail.

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

Geological & Scientific Information:

  • Fossil Type: Ammonite
  • Species: Coeloderoceras ponticum
  • Order: Ammonitida
  • Superfamily: Eoderoceratoidea
  • Family: Coeloceratidae
  • Geological Stage: Lower Pliensbachian (~190.8 – 182.7 million years ago)
  • Biozone: Davoei Zone (Coeloderoceras often found in association with this subzone, especially in Somerset localities)
  • Formation: Lower Lias
  • Locality: Radstock Grove Quarry, Radstock, Somerset, England, UK
  • Depositional Environment: Shallow marine shelf with deposition of dark grey calcareous muds and shales, typical of the Lias Group, laid down under low-energy marine conditions

Morphology & Notable Features:

  • Planispiral, evolute shell with prominent radial ribbing
  • Wide umbilicus, broad whorls with gently rounded flanks
  • Strong, bifurcating ribs that give the shell its distinctive ornamented appearance
  • Well-preserved keel and venter, often slightly flattened
  • The genus Coeloderoceras is known for its robust and heavily ribbed forms, making it highly desirable among collectors of Early Jurassic ammonites

Scientific Significance:

Coeloderoceras ponticum is a biostratigraphically important ammonite genus, especially in British Lias successions. It serves as an indicator species for the Lower Pliensbachian and contributes to the zonal division of this stage in Western Europe.

Originally described in classic 19th-century monographs and expanded upon in British Jurassic studies, it holds importance both as a collector’s fossil and as a stratigraphic marker.

Ideal For:

  • Fossil and ammonite collectors
  • Academic or stratigraphic reference collections
  • Museum or teaching displays
  • Gifts for geology enthusiasts or science lovers

What You Will Receive:

  • The exact Coeloderoceras ponticum fossil shown
  • Certificate of Authenticity
  • Professional, secure packaging to ensure safe delivery

Feel free to contact us if you need further details, fossil ID assistance, or want to expand your collection with similar Early Jurassic specimens.

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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