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 8" Dorsetensia liostrata Fossil Ammonite – Upper Bajocian, Jurassic – Frogden Oborne Dorset UK – COA – Alice Purnell Collection
RARE 8" Dorsetensia liostrata Fossil Ammonite – Upper Bajocian, Jurassic – Frogden Oborne Dorset UK – COA – Alice Purnell Collection - Image 2

RARE 8″ Dorsetensia liostrata Fossil Ammonite – Upper Bajocian, Jurassic – Frogden Oborne Dorset UK – COA – Alice Purnell Collection

£180.00

This listing features a rare and well-preserved 8-inch specimen of Dorsetensia liostrata, an elegant fossil ammonite from the Upper Bajocian Stage of the Middle Jurassic, discovered at Frogden Oborne, Dorset, United Kingdom. This specimen comes from the respected Alice Purnell Collection, and the photo provided shows the actual fossil you will receive.

Geological Context:

  • Species: Dorsetensia liostrata
  • Geological Period: Jurassic
  • Stage: Upper Bajocian (~170 to 168 million years ago)
  • Location: Frogden Oborne, Dorset, UK
  • Depositional Environment: Shallow marine environment with well-oxygenated shelf conditions, typically rich in calcareous mudstone and bioclastic debris, ideal for ammonite fossil preservation

Taxonomic Classification:

  • Family: Sonniniidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Suborder: Ammonitina
  • First Described By: Oppel, 1865

Morphological Features:

Dorsetensia liostrata is characterised by a smooth, finely ribbed, evolute shell with a broad umbilicus. The whorls are low and compressed, with weakly defined ribs and a rounded venter. Unlike many more ornate ammonites, its simplicity in form reflects a transitional morphology within mid-Jurassic ammonite evolution. This 8″ specimen is notable for its size and exceptional detail.

Stratigraphic and Scientific Significance:

Dorsetensia liostrata is a biostratigraphically useful species for correlation within the Upper Bajocian of Western Europe. Its presence helps define part of the Niortense or Parkinsoni Biozones in British Jurassic sequences. The genus Dorsetensia represents a relatively short-lived but regionally important ammonite lineage during a period of significant faunal turnover.

Additional Details:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
  • Scale Rule Squares / Cube = 1cm: Full sizing visible in the provided photo.
  • Part of the scientifically curated Alice Purnell Collection.

Whether for education, research, or personal display, this rare ammonite fossil is a striking and scientifically valuable example of Middle Jurassic marine life from the Dorset Coast.

Add this exceptional piece to your collection today.

(Actual as seen)

Only 1 left in stock

SKU: AF1254 Category:

Description

This listing features a rare and well-preserved 8-inch specimen of Dorsetensia liostrata, an elegant fossil ammonite from the Upper Bajocian Stage of the Middle Jurassic, discovered at Frogden Oborne, Dorset, United Kingdom. This specimen comes from the respected Alice Purnell Collection, and the photo provided shows the actual fossil you will receive.

Geological Context:

  • Species: Dorsetensia liostrata
  • Geological Period: Jurassic
  • Stage: Upper Bajocian (~170 to 168 million years ago)
  • Location: Frogden Oborne, Dorset, UK
  • Depositional Environment: Shallow marine environment with well-oxygenated shelf conditions, typically rich in calcareous mudstone and bioclastic debris, ideal for ammonite fossil preservation

Taxonomic Classification:

  • Family: Sonniniidae
  • Superfamily: Hildoceratoidea
  • Order: Ammonitida
  • Suborder: Ammonitina
  • First Described By: Oppel, 1865

Morphological Features:

Dorsetensia liostrata is characterised by a smooth, finely ribbed, evolute shell with a broad umbilicus. The whorls are low and compressed, with weakly defined ribs and a rounded venter. Unlike many more ornate ammonites, its simplicity in form reflects a transitional morphology within mid-Jurassic ammonite evolution. This 8″ specimen is notable for its size and exceptional detail.

Stratigraphic and Scientific Significance:

Dorsetensia liostrata is a biostratigraphically useful species for correlation within the Upper Bajocian of Western Europe. Its presence helps define part of the Niortense or Parkinsoni Biozones in British Jurassic sequences. The genus Dorsetensia represents a relatively short-lived but regionally important ammonite lineage during a period of significant faunal turnover.

Additional Details:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
  • Scale Rule Squares / Cube = 1cm: Full sizing visible in the provided photo.
  • Part of the scientifically curated Alice Purnell Collection.

Whether for education, research, or personal display, this rare ammonite fossil is a striking and scientifically valuable example of Middle Jurassic marine life from the Dorset Coast.

Add this exceptional piece to your collection today.

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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