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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VERY RARE Deinekia romani Fossil Ammonite – Laeviscula Zone, Bajocian, Jurassic – Beaminster UK – COA – Alice Purnell Collection
VERY RARE Deinekia romani Fossil Ammonite – Laeviscula Zone, Bajocian, Jurassic – Beaminster UK – COA – Alice Purnell Collection - Image 2

VERY RARE Deinekia romani Fossil Ammonite – Laeviscula Zone, Bajocian, Jurassic – Beaminster UK – COA – Alice Purnell Collection

£48.00

A very rare and scientifically valuable specimen of Deinekia romani, a distinctive fossil ammonite from the Laeviscula Zone of the Bajocian Stage, Middle Jurassic, discovered at Beaminster, United Kingdom. This rare ammonite is part of the prestigious Alice Purnell Collection, and the exact specimen is shown in the photograph.

Geological Context:

  • Species: Deinekia romani
  • Geological Period: Jurassic
  • Stage: Bajocian (~170.3 – 168.3 million years ago)
  • Biozone: Laeviscula Zone
  • Location: Beaminster, Dorset, UK
  • Depositional Environment: Shallow epicontinental sea with mixed carbonate and clay-rich sedimentation, typical of the early Middle Jurassic marine environments in the Wessex Basin

Taxonomic Classification:

  • Family: Stephanoceratidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Suborder: Ammonitina
  • First formally described by: R. Buckman (early 20th century)

Morphological Features:

Deinekia romani is recognised for its compressed and involute shell, with narrow whorls and strong radial ribbing. Ribs are often sharp and widely spaced, bifurcating from the umbilical shoulder and curving forward across the flanks. The venter is rounded, sometimes keeled in later growth stages. The genus Deinekia is uncommon and represents a transitional morphology within Stephanoceratidae, contributing to the understanding of mid-Jurassic ammonite evolution.

This specimen clearly shows these features, including well-defined primary and secondary ribs, fine shell detail, and a well-preserved outline, making it a display-worthy and scientifically notable example.

Stratigraphic and Scientific Importance:

Deinekia romani is a rare taxon used in the regional refinement of ammonite zonation in the early Bajocian, particularly within the Laeviscula Zone. Its presence helps document evolutionary trends in Stephanoceras-like ammonites during a period of rapid faunal diversification. Specimens like this from well-documented localities such as Beaminster provide important reference points in the Jurassic fossil record of southern Britain.

Additional Details:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
  • Scale Rule Squares / Cube = 1cm. Please see listing photo for full specimen sizing.
  • From the scientifically recognised Alice Purnell Collection.

This is a premium-grade ammonite fossil, ideal for researchers, collectors, and enthusiasts of Jurassic palaeontology. Specimens of Deinekia romani are seldom available, especially with such provenance and preservation.

Add this exceptionally rare fossil to your collection today.

(Actual as seen)

Only 1 left in stock

SKU: AF1269 Category:

Description

A very rare and scientifically valuable specimen of Deinekia romani, a distinctive fossil ammonite from the Laeviscula Zone of the Bajocian Stage, Middle Jurassic, discovered at Beaminster, United Kingdom. This rare ammonite is part of the prestigious Alice Purnell Collection, and the exact specimen is shown in the photograph.

Geological Context:

  • Species: Deinekia romani
  • Geological Period: Jurassic
  • Stage: Bajocian (~170.3 – 168.3 million years ago)
  • Biozone: Laeviscula Zone
  • Location: Beaminster, Dorset, UK
  • Depositional Environment: Shallow epicontinental sea with mixed carbonate and clay-rich sedimentation, typical of the early Middle Jurassic marine environments in the Wessex Basin

Taxonomic Classification:

  • Family: Stephanoceratidae
  • Superfamily: Stephanoceratoidea
  • Order: Ammonitida
  • Suborder: Ammonitina
  • First formally described by: R. Buckman (early 20th century)

Morphological Features:

Deinekia romani is recognised for its compressed and involute shell, with narrow whorls and strong radial ribbing. Ribs are often sharp and widely spaced, bifurcating from the umbilical shoulder and curving forward across the flanks. The venter is rounded, sometimes keeled in later growth stages. The genus Deinekia is uncommon and represents a transitional morphology within Stephanoceratidae, contributing to the understanding of mid-Jurassic ammonite evolution.

This specimen clearly shows these features, including well-defined primary and secondary ribs, fine shell detail, and a well-preserved outline, making it a display-worthy and scientifically notable example.

Stratigraphic and Scientific Importance:

Deinekia romani is a rare taxon used in the regional refinement of ammonite zonation in the early Bajocian, particularly within the Laeviscula Zone. Its presence helps document evolutionary trends in Stephanoceras-like ammonites during a period of rapid faunal diversification. Specimens like this from well-documented localities such as Beaminster provide important reference points in the Jurassic fossil record of southern Britain.

Additional Details:

  • All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
  • Scale Rule Squares / Cube = 1cm. Please see listing photo for full specimen sizing.
  • From the scientifically recognised Alice Purnell Collection.

This is a premium-grade ammonite fossil, ideal for researchers, collectors, and enthusiasts of Jurassic palaeontology. Specimens of Deinekia romani are seldom available, especially with such provenance and preservation.

Add this exceptionally rare fossil 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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