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" Skirroceras leptogyrale Fossil Ammonite, Lower Bajocian Jurassic, BRUTON Somerset UK – Authentic Specimen with COA
RARE: 8" Skirroceras leptogyrale Fossil Ammonite, Lower Bajocian Jurassic, BRUTON Somerset UK – Authentic Specimen with COA - Image 2

RARE: 8″ Skirroceras leptogyrale Fossil Ammonite, Lower Bajocian Jurassic, BRUTON Somerset UK – Authentic Specimen with COA

£60.00

Presenting a rare and scientifically significant 8″ Skirroceras leptogyrale fossil ammonite, discovered in the Lower Bajocian Stage of the Middle Jurassic, near Bruton, Somerset, United Kingdom. This is an excellent example of a lesser-known but taxonomically important ammonite genus.

Taxonomic Classification:

  • Genus: Skirroceras
  • Species: leptogyrale
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Stephanoceratidae
  • First formally described by Buckman (1921), this genus is considered an important transitional form in Middle Jurassic ammonite evolution.

Geological Context:

  • Formation: Inferior Oolite Group (Bajocian limestones and marls in the Wessex Basin)
  • Stage: Lower Bajocian (Middle Jurassic)
  • Age: Approximately 170 million years old
  • Location: Bruton, Somerset, UK
  • Depositional Environment: Shallow marine platform with calcareous sediments, indicating well-oxygenated waters conducive to nektonic marine life
  • Biozone: Associated with the Skirroceras leptogyrale Zone in regional stratigraphy

Morphological Features:

  • Involute to moderately evolute shell with a narrow umbilicus
  • Delicately ribbed flanks with spiral and radial ornamentation
  • Fine lirae and occasional tubercles, showing excellent preservation
  • Slender and compressed whorls, giving the species its name (leptogyrale = slender coiling)

Notable Scientific Importance:

  • Skirroceras leptogyrale is a stratigraphically useful ammonite used to date Lower Bajocian beds, especially in southern England and parts of Europe
  • This genus marks a point of morphological transition between older Stephanoceratids and later, more ornamented ammonites

This specimen is pictured with a 1cm square scale cube, allowing precise assessment of size and proportions. The fossil shown is the exact specimen you will receive.

Authenticity Guaranteed: As always, this fossil is a 100% genuine natural specimen and comes complete with a Certificate of Authenticity. It is an ideal piece for fossil collectors, academic study, museum-quality displays, or educational purposes.

Please see all images for full condition and size details. A unique opportunity to acquire a rare and transitional ammonite from one of Britain’s most fossil-rich Jurassic sites.

(Actual as seen)

Only 1 left in stock

SKU: UF3861 Category:

Description

Presenting a rare and scientifically significant 8″ Skirroceras leptogyrale fossil ammonite, discovered in the Lower Bajocian Stage of the Middle Jurassic, near Bruton, Somerset, United Kingdom. This is an excellent example of a lesser-known but taxonomically important ammonite genus.

Taxonomic Classification:

  • Genus: Skirroceras
  • Species: leptogyrale
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Stephanoceratidae
  • First formally described by Buckman (1921), this genus is considered an important transitional form in Middle Jurassic ammonite evolution.

Geological Context:

  • Formation: Inferior Oolite Group (Bajocian limestones and marls in the Wessex Basin)
  • Stage: Lower Bajocian (Middle Jurassic)
  • Age: Approximately 170 million years old
  • Location: Bruton, Somerset, UK
  • Depositional Environment: Shallow marine platform with calcareous sediments, indicating well-oxygenated waters conducive to nektonic marine life
  • Biozone: Associated with the Skirroceras leptogyrale Zone in regional stratigraphy

Morphological Features:

  • Involute to moderately evolute shell with a narrow umbilicus
  • Delicately ribbed flanks with spiral and radial ornamentation
  • Fine lirae and occasional tubercles, showing excellent preservation
  • Slender and compressed whorls, giving the species its name (leptogyrale = slender coiling)

Notable Scientific Importance:

  • Skirroceras leptogyrale is a stratigraphically useful ammonite used to date Lower Bajocian beds, especially in southern England and parts of Europe
  • This genus marks a point of morphological transition between older Stephanoceratids and later, more ornamented ammonites

This specimen is pictured with a 1cm square scale cube, allowing precise assessment of size and proportions. The fossil shown is the exact specimen you will receive.

Authenticity Guaranteed: As always, this fossil is a 100% genuine natural specimen and comes complete with a Certificate of Authenticity. It is an ideal piece for fossil collectors, academic study, museum-quality displays, or educational purposes.

Please see all images for full condition and size details. A unique opportunity to acquire a rare and transitional ammonite from one of Britain’s most fossil-rich Jurassic sites.

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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