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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8.5" Skirroceras (Stephanoceras macrum) Fossil Ammonite - Middle Bajocian Jurassic, Burton Bradstock, UK - Alice Purnell Collection - COA
8.5" Skirroceras (Stephanoceras macrum) Fossil Ammonite - Middle Bajocian Jurassic, Burton Bradstock, UK - Alice Purnell Collection - COA - Image 2

8.5″ Skirroceras (Stephanoceras macrum) Fossil Ammonite – Middle Bajocian Jurassic, Burton Bradstock, UK – Alice Purnell Collection – COA

£240.00

This impressive 8.5″ fossil ammonite is a superb specimen of Skirroceras (Stephanoceras macrum), collected from the Inferior Oolite strata of the Middle Bajocian stage, approximately 170 million years old. It was found in the rich Jurassic deposits of Burton Bradstock, part of the renowned Jurassic Coast in Dorset, UK.

Stephanoceras macrum belongs to the family Stephanoceratidae, a group of ammonites known for their robust, coiled shells with sharply ribbed ornamentation. Skirroceras is a subgenus or closely related form, characterised by bold, radiating ribs and pronounced tuberculation that reflect their adaptation to marine environments of the Jurassic period. These ammonites were nektonic carnivores, swimming in ancient seas hunting small marine organisms.

The geology of the Burton Bradstock region, specifically the Inferior Oolite Formation, represents a time when warm shallow seas covered much of southern England. The sedimentary layers here are rich in well-preserved marine fossils, and this specimen is a prime example, both in size and preservation.

This particular piece is from the Alice Purnell Collection, known for its carefully curated, museum-quality fossil specimens. It has been professionally cleaned and prepped, showcasing incredible detail and natural form. This ammonite is not only a collector’s dream but also a powerful educational and decorative item.

 

Item Details:

  • Species: Skirroceras (Stephanoceras macrum)
  • Fossil Type: Ammonite
  • Age: Middle Bajocian, Jurassic (~170 million years ago)
  • Formation: Inferior Oolite
  • Location Found: Burton Bradstock, Dorset, United Kingdom
  • Size: Approx. 8.5 inches (please refer to scale photo for full sizing)
  • Provenance: Alice Purnell Collection
  • Certificate of Authenticity: Included

 

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The fossil has been meticulously hand-selected, photographed, and assessed for quality. Please note that colours may vary slightly depending on lighting conditions and device displays. Measurements are provided as accurately as possible, accounting for the natural irregularities of the specimen.

Once this item is sold, the listing will be updated with a new, similar fossil specimen, including fresh images and measurements.

 

100% Genuine Fossil – Professionally Prepared – Certificate of Authenticity Included

(Actual as seen)

Out of stock

SKU: AF2000 Category:

Description

This impressive 8.5″ fossil ammonite is a superb specimen of Skirroceras (Stephanoceras macrum), collected from the Inferior Oolite strata of the Middle Bajocian stage, approximately 170 million years old. It was found in the rich Jurassic deposits of Burton Bradstock, part of the renowned Jurassic Coast in Dorset, UK.

Stephanoceras macrum belongs to the family Stephanoceratidae, a group of ammonites known for their robust, coiled shells with sharply ribbed ornamentation. Skirroceras is a subgenus or closely related form, characterised by bold, radiating ribs and pronounced tuberculation that reflect their adaptation to marine environments of the Jurassic period. These ammonites were nektonic carnivores, swimming in ancient seas hunting small marine organisms.

The geology of the Burton Bradstock region, specifically the Inferior Oolite Formation, represents a time when warm shallow seas covered much of southern England. The sedimentary layers here are rich in well-preserved marine fossils, and this specimen is a prime example, both in size and preservation.

This particular piece is from the Alice Purnell Collection, known for its carefully curated, museum-quality fossil specimens. It has been professionally cleaned and prepped, showcasing incredible detail and natural form. This ammonite is not only a collector’s dream but also a powerful educational and decorative item.

 

Item Details:

  • Species: Skirroceras (Stephanoceras macrum)
  • Fossil Type: Ammonite
  • Age: Middle Bajocian, Jurassic (~170 million years ago)
  • Formation: Inferior Oolite
  • Location Found: Burton Bradstock, Dorset, United Kingdom
  • Size: Approx. 8.5 inches (please refer to scale photo for full sizing)
  • Provenance: Alice Purnell Collection
  • Certificate of Authenticity: Included

 

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The fossil has been meticulously hand-selected, photographed, and assessed for quality. Please note that colours may vary slightly depending on lighting conditions and device displays. Measurements are provided as accurately as possible, accounting for the natural irregularities of the specimen.

Once this item is sold, the listing will be updated with a new, similar fossil specimen, including fresh images and measurements.

 

100% Genuine Fossil – Professionally Prepared – Certificate of Authenticity Included

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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