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RARE Hyperlioceras discites Fossil Ammonite – Middle Bajocian Jurassic – Inferior Oolite – Dorset UK – Alice Purnell Collection
RARE Hyperlioceras discites Fossil Ammonite – Middle Bajocian Jurassic – Inferior Oolite – Dorset UK – Alice Purnell Collection - Image 2

RARE Hyperlioceras discites Fossil Ammonite – Middle Bajocian Jurassic – Inferior Oolite – Dorset UK – Alice Purnell Collection

£42.00

For sale is a superb Hyperlioceras discites fossil ammonite, collected from the Inferior Oolite Group, Middle Bajocian Stage of the Jurassic Period, approximately 170 million years old. This exceptional piece originates from the Burton Bradstock area in Dorset, United Kingdom — a region famous for its geologically rich marine fossil beds.

The fossil comes from the respected Alice Purnell Collection and is supplied with a Certificate of Authenticity. The actual specimen shown in the photo is the one you will receive.

Scale Rule Squares / Cube = 1cm – please see the photo for full sizing.

Geological & Palaeontological Details:

  • Species: Hyperlioceras discites
  • Geological Period: Jurassic
  • Stage: Middle Bajocian (~170.3 – 168.3 million years ago)
  • Formation: Inferior Oolite Group
  • Location: Burton Bradstock, Dorset, UK
  • Depositional Environment: Shallow marine carbonate platform, with periodic influxes of fine silts and bioclastic materials

Taxonomic Classification:

  • Family: Graphoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Biozone and Stratigraphy:

  • Often found within the Discites Subzone, part of the broader Laeviuscula Zone of the Middle Bajocian
  • This subzone is used to correlate marine strata across southern England and parts of Europe, reflecting a period of significant ammonite diversification

Morphology & Diagnostic Features:

  • Hyperlioceras discites is distinguished by its evolute and discoidal shell, with wide umbilicus and compressed whorl section
  • The ribbing is sharp, dense, and bifurcating with fine growth lines visible under close inspection
  • Its keel is often prominent, running along the venter
  • The flattened profile and symmetrical coiling make it visually striking and taxonomically important

Notable Scientific & Collector Value:

  • Hyperlioceras discites plays a key role in regional and intercontinental biostratigraphy
  • Well-preserved examples like this are highly sought after by both collectors and researchers due to their stratigraphic significance and rarity outside specific exposures like Burton Bradstock
  • An excellent teaching tool or display fossil for enthusiasts of Jurassic palaeontology

Summary:

This is a top-quality specimen of Hyperlioceras discites, originating from the world-renowned fossil locality of Burton Bradstock, Dorset, and dating to the Middle Bajocian Stage of the Jurassic. With distinct morphological features and a rich geological context, this fossil makes a superb addition to any collection.

Backed by its inclusion in the Alice Purnell Collection and supplied with a Certificate of Authenticity, this ammonite is a genuine piece of ancient Earth history.

Additional Notes:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
  • The specimen in the image is the exact item you will receive
  • Scale cube = 1cm for reference – please check photo for measurements

 

(Actual as seen)

Only 1 left in stock

SKU: AF1278 Category:

Description

For sale is a superb Hyperlioceras discites fossil ammonite, collected from the Inferior Oolite Group, Middle Bajocian Stage of the Jurassic Period, approximately 170 million years old. This exceptional piece originates from the Burton Bradstock area in Dorset, United Kingdom — a region famous for its geologically rich marine fossil beds.

The fossil comes from the respected Alice Purnell Collection and is supplied with a Certificate of Authenticity. The actual specimen shown in the photo is the one you will receive.

Scale Rule Squares / Cube = 1cm – please see the photo for full sizing.

Geological & Palaeontological Details:

  • Species: Hyperlioceras discites
  • Geological Period: Jurassic
  • Stage: Middle Bajocian (~170.3 – 168.3 million years ago)
  • Formation: Inferior Oolite Group
  • Location: Burton Bradstock, Dorset, UK
  • Depositional Environment: Shallow marine carbonate platform, with periodic influxes of fine silts and bioclastic materials

Taxonomic Classification:

  • Family: Graphoceratidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Class: Cephalopoda
  • Phylum: Mollusca

Biozone and Stratigraphy:

  • Often found within the Discites Subzone, part of the broader Laeviuscula Zone of the Middle Bajocian
  • This subzone is used to correlate marine strata across southern England and parts of Europe, reflecting a period of significant ammonite diversification

Morphology & Diagnostic Features:

  • Hyperlioceras discites is distinguished by its evolute and discoidal shell, with wide umbilicus and compressed whorl section
  • The ribbing is sharp, dense, and bifurcating with fine growth lines visible under close inspection
  • Its keel is often prominent, running along the venter
  • The flattened profile and symmetrical coiling make it visually striking and taxonomically important

Notable Scientific & Collector Value:

  • Hyperlioceras discites plays a key role in regional and intercontinental biostratigraphy
  • Well-preserved examples like this are highly sought after by both collectors and researchers due to their stratigraphic significance and rarity outside specific exposures like Burton Bradstock
  • An excellent teaching tool or display fossil for enthusiasts of Jurassic palaeontology

Summary:

This is a top-quality specimen of Hyperlioceras discites, originating from the world-renowned fossil locality of Burton Bradstock, Dorset, and dating to the Middle Bajocian Stage of the Jurassic. With distinct morphological features and a rich geological context, this fossil makes a superb addition to any collection.

Backed by its inclusion in the Alice Purnell Collection and supplied with a Certificate of Authenticity, this ammonite is a genuine piece of ancient Earth history.

Additional Notes:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
  • The specimen in the image is the exact item you will receive
  • Scale cube = 1cm for reference – please check photo for measurements

 

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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