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RARE Clydoniceras discus Fossil Ammonite – Upper Bathonian Jurassic – Shoncote Wiltshire UK – Alice Purnell Collection – Genuine & Certified
RARE Clydoniceras discus Fossil Ammonite – Upper Bathonian Jurassic – Shoncote Wiltshire UK – Alice Purnell Collection – Genuine & Certified - Image 2

RARE Clydoniceras discus Fossil Ammonite – Upper Bathonian Jurassic – Shoncote Wiltshire UK – Alice Purnell Collection – Genuine & Certified

£14.40

Offered here is a genuine fossil specimen of Clydoniceras discus, a beautifully preserved ammonite from the Upper Bathonian Stage of the Middle Jurassic Period, found at Shoncote, Wiltshire, United Kingdom.

This ammonite is from the Alice Purnell Collection and has been carefully selected for its scientific and aesthetic value. The photograph shows the exact specimen you will receive. Each fossil is accompanied by a Certificate of Authenticity, guaranteeing its genuine nature and provenance.

Scale Rule Squares / Cube = 1cm – please refer to the photo for accurate sizing.

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

Geological & Palaeontological Context

  • Species: Clydoniceras discus
  • Geological Period: Jurassic
  • Stage: Upper Bathonian (~167.0 – 166.0 million years ago)
  • Stratigraphy: Forest Marble Formation
  • Location: Shoncote, Wiltshire, United Kingdom
  • Depositional Environment: Shallow marine platform setting with calcareous silts and marls; likely moderately oxygenated waters with episodic high-energy events
  • Biozone (if determinable): Possibly within the Discus Zone, a key ammonite biostratigraphic interval of the Upper Bathonian

Taxonomic Classification

  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Tulitidae
  • Genus: Clydoniceras
  • Species: Clydoniceras discus

Morphological Features

  • The shell is discoidal and involute, with a narrow umbilicus and well-developed ribbing.
  • The ribs are strong and often bifurcate mid-flank, fading toward the venter.
  • Typically features a sharp venter with low keel expression, differentiating it from more robust Middle Jurassic ammonites.

Notability

  • Clydoniceras discus is important in the biostratigraphic correlation of Upper Bathonian sequences and is relatively rare in complete form.
  • Fossils from Shoncote are particularly prized due to the historical nature of the exposures and the restricted fossiliferous beds.
  • This specimen holds both scientific significance and collector’s appeal.

Summary

This is a rare and scientifically significant fossil ammonite of Clydoniceras discus, from the Upper Bathonian Stage of the Jurassic Period, recovered from Shoncote, Wiltshire, UK. It originates from the notable Alice Purnell Collection, and the actual specimen is depicted in the photo provided.

This listing includes a Certificate of Authenticity verifying it as a 100% genuine specimen.

A true collector’s fossil and an excellent addition to palaeontological, educational, or display collections.

Important Notes:

  • The fossil pictured is the exact one you will receive
  • Each square in the photo’s scale cube = 1cm
  • Part of the Alice Purnell Collection
  • Guaranteed authentic with included certification

 

(Actual as seen)

Only 1 left in stock

SKU: AF1286 Category:

Description

Offered here is a genuine fossil specimen of Clydoniceras discus, a beautifully preserved ammonite from the Upper Bathonian Stage of the Middle Jurassic Period, found at Shoncote, Wiltshire, United Kingdom.

This ammonite is from the Alice Purnell Collection and has been carefully selected for its scientific and aesthetic value. The photograph shows the exact specimen you will receive. Each fossil is accompanied by a Certificate of Authenticity, guaranteeing its genuine nature and provenance.

Scale Rule Squares / Cube = 1cm – please refer to the photo for accurate sizing.

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

Geological & Palaeontological Context

  • Species: Clydoniceras discus
  • Geological Period: Jurassic
  • Stage: Upper Bathonian (~167.0 – 166.0 million years ago)
  • Stratigraphy: Forest Marble Formation
  • Location: Shoncote, Wiltshire, United Kingdom
  • Depositional Environment: Shallow marine platform setting with calcareous silts and marls; likely moderately oxygenated waters with episodic high-energy events
  • Biozone (if determinable): Possibly within the Discus Zone, a key ammonite biostratigraphic interval of the Upper Bathonian

Taxonomic Classification

  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Tulitidae
  • Genus: Clydoniceras
  • Species: Clydoniceras discus

Morphological Features

  • The shell is discoidal and involute, with a narrow umbilicus and well-developed ribbing.
  • The ribs are strong and often bifurcate mid-flank, fading toward the venter.
  • Typically features a sharp venter with low keel expression, differentiating it from more robust Middle Jurassic ammonites.

Notability

  • Clydoniceras discus is important in the biostratigraphic correlation of Upper Bathonian sequences and is relatively rare in complete form.
  • Fossils from Shoncote are particularly prized due to the historical nature of the exposures and the restricted fossiliferous beds.
  • This specimen holds both scientific significance and collector’s appeal.

Summary

This is a rare and scientifically significant fossil ammonite of Clydoniceras discus, from the Upper Bathonian Stage of the Jurassic Period, recovered from Shoncote, Wiltshire, UK. It originates from the notable Alice Purnell Collection, and the actual specimen is depicted in the photo provided.

This listing includes a Certificate of Authenticity verifying it as a 100% genuine specimen.

A true collector’s fossil and an excellent addition to palaeontological, educational, or display collections.

Important Notes:

  • The fossil pictured is the exact one you will receive
  • Each square in the photo’s scale cube = 1cm
  • Part of the Alice Purnell Collection
  • Guaranteed authentic with included certification

 

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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