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 Pachylytoceras toulosuim Fossil Ammonite Jurassic Bajocian Eurecy Calvados France

Rare Pachylytoceras toulosuim Fossil Ammonite Jurassic Bajocian Eurecy Calvados France

£24.00

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Selling Title

Rare Pachylytoceras toulosuim Fossil Ammonite Jurassic Bajocian Eurecy Calvados France

Rare Pachylytoceras toulosuim Ammonite Fossil Bajocian Jurassic Eurecy Calvados France with Certificate of Authenticity

Long Description

Rare Pachylytoceras toulosuim Fossil Ammonite from Eurecy, Calvados, France

This listing offers a rare Pachylytoceras toulosuim fossil ammonite, originating from the Bajocian stage of the Jurassic period. Found in Eurecy, Calvados, France, this ammonite represents a striking example of a genus prized for its robustness, rarity, and scientific importance. The exact specimen shown in the photographs is the one you will receive, with a 1 cm scale cube included for accurate size reference. Every fossil we provide is 100% genuine and comes with a Certificate of Authenticity.

Geological Age and Setting – Bajocian, Jurassic

This ammonite is from the Bajocian stage of the Middle Jurassic, dating to approximately 170–168 million years ago. During this time, the Normandy region of France lay beneath warm, shallow epicontinental seas, part of the broader Tethys Ocean system. Sedimentary environments dominated by marls and limestones allowed for excellent preservation of marine fossils, including ammonites, bivalves, echinoderms, and marine reptiles.

The Bajocian stage is a key interval in Jurassic geology and is marked by a major diversification of ammonites. Fossils from this time are widely used as biostratigraphic markers, enabling geologists to correlate rock formations across Europe and establish precise age frameworks.

Species and Classification

  • Genus: Pachylytoceras
  • Species: toulosuim
  • Order: Ammonitida
  • Superfamily: Lytoceratoidea
  • Family: Lytoceratidae

Pachylytoceras is part of the Lytoceratidae, a family of ammonites distinguished by their evolute coiling and complex suture lines. This group is especially significant for its role in ammonite evolution, bridging important transitions between Early and Middle Jurassic ammonite faunas. The species toulosuim is notably less common, adding to its collector value.

Morphological Features

The Pachylytoceras toulosuim ammonite exhibits several distinctive traits:

  • Shell form: Large, evolute coiling with exposed inner whorls.
  • Whorl profile: Broad and rounded, with a sturdy, massive appearance.
  • Ribbing: Characteristically strong, with ribs crossing the flanks and extending across the venter.
  • Sutures: Elaborate and deeply incised, typical of Lytoceratidae, adding ornamental appeal.

These features make the fossil instantly recognisable and highlight the evolutionary adaptations of Pachylytoceras during the Bajocian.

Stratigraphy and Biozone Importance

Pachylytoceras toulosuim is closely associated with specific Bajocian ammonite biozones, making it a valuable index fossil. Its presence in the Eurecy deposits enhances understanding of regional stratigraphy and contributes to wider European Jurassic correlations. Ammonites like this specimen provide critical evidence for reconstructing Jurassic marine ecosystems.

Collector and Display Value

  • Collectors will appreciate this ammonite for its rarity and provenance from a classic French locality.
  • Researchers and educators value it for its stratigraphic importance and evolutionary significance within the Lytoceratidae.
  • For display purposes, its robust shell, bold ribbing, and impressive size make it a visually striking addition to any fossil collection.

Authenticity and Guarantee

We guarantee that all of our fossils are 100% genuine specimens. This Pachylytoceras toulosuim ammonite has been carefully selected for its rarity, scientific value, and aesthetic appeal. Each specimen is accompanied by a Certificate of Authenticity, ensuring confidence in its provenance and geological age.

Key Information at a Glance

  • Fossil Type: Ammonite
  • Species: Pachylytoceras toulosuim
  • Geological Age: Bajocian, Middle Jurassic (~170–168 million years old)
  • Locality: Eurecy, Calvados, France
  • Family: Lytoceratidae
  • Order: Ammonitida
  • Condition: Natural fossil with robust ribbing and excellent preservation
  • Authenticity: Guaranteed with Certificate of Authenticity

This rare Pachylytoceras toulosuim ammonite fossil from Eurecy, Calvados, France is both scientifically important and visually impressive, making it an ideal choice for collectors, researchers, and enthusiasts of Jurassic natural history.

(Actual as seen)

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SKU: UF4761 Category:

Description

ChatGPT said:

 

Selling Title

Rare Pachylytoceras toulosuim Fossil Ammonite Jurassic Bajocian Eurecy Calvados France

Rare Pachylytoceras toulosuim Ammonite Fossil Bajocian Jurassic Eurecy Calvados France with Certificate of Authenticity

Long Description

Rare Pachylytoceras toulosuim Fossil Ammonite from Eurecy, Calvados, France

This listing offers a rare Pachylytoceras toulosuim fossil ammonite, originating from the Bajocian stage of the Jurassic period. Found in Eurecy, Calvados, France, this ammonite represents a striking example of a genus prized for its robustness, rarity, and scientific importance. The exact specimen shown in the photographs is the one you will receive, with a 1 cm scale cube included for accurate size reference. Every fossil we provide is 100% genuine and comes with a Certificate of Authenticity.

Geological Age and Setting – Bajocian, Jurassic

This ammonite is from the Bajocian stage of the Middle Jurassic, dating to approximately 170–168 million years ago. During this time, the Normandy region of France lay beneath warm, shallow epicontinental seas, part of the broader Tethys Ocean system. Sedimentary environments dominated by marls and limestones allowed for excellent preservation of marine fossils, including ammonites, bivalves, echinoderms, and marine reptiles.

The Bajocian stage is a key interval in Jurassic geology and is marked by a major diversification of ammonites. Fossils from this time are widely used as biostratigraphic markers, enabling geologists to correlate rock formations across Europe and establish precise age frameworks.

Species and Classification

  • Genus: Pachylytoceras
  • Species: toulosuim
  • Order: Ammonitida
  • Superfamily: Lytoceratoidea
  • Family: Lytoceratidae

Pachylytoceras is part of the Lytoceratidae, a family of ammonites distinguished by their evolute coiling and complex suture lines. This group is especially significant for its role in ammonite evolution, bridging important transitions between Early and Middle Jurassic ammonite faunas. The species toulosuim is notably less common, adding to its collector value.

Morphological Features

The Pachylytoceras toulosuim ammonite exhibits several distinctive traits:

  • Shell form: Large, evolute coiling with exposed inner whorls.
  • Whorl profile: Broad and rounded, with a sturdy, massive appearance.
  • Ribbing: Characteristically strong, with ribs crossing the flanks and extending across the venter.
  • Sutures: Elaborate and deeply incised, typical of Lytoceratidae, adding ornamental appeal.

These features make the fossil instantly recognisable and highlight the evolutionary adaptations of Pachylytoceras during the Bajocian.

Stratigraphy and Biozone Importance

Pachylytoceras toulosuim is closely associated with specific Bajocian ammonite biozones, making it a valuable index fossil. Its presence in the Eurecy deposits enhances understanding of regional stratigraphy and contributes to wider European Jurassic correlations. Ammonites like this specimen provide critical evidence for reconstructing Jurassic marine ecosystems.

Collector and Display Value

  • Collectors will appreciate this ammonite for its rarity and provenance from a classic French locality.
  • Researchers and educators value it for its stratigraphic importance and evolutionary significance within the Lytoceratidae.
  • For display purposes, its robust shell, bold ribbing, and impressive size make it a visually striking addition to any fossil collection.

Authenticity and Guarantee

We guarantee that all of our fossils are 100% genuine specimens. This Pachylytoceras toulosuim ammonite has been carefully selected for its rarity, scientific value, and aesthetic appeal. Each specimen is accompanied by a Certificate of Authenticity, ensuring confidence in its provenance and geological age.

Key Information at a Glance

  • Fossil Type: Ammonite
  • Species: Pachylytoceras toulosuim
  • Geological Age: Bajocian, Middle Jurassic (~170–168 million years old)
  • Locality: Eurecy, Calvados, France
  • Family: Lytoceratidae
  • Order: Ammonitida
  • Condition: Natural fossil with robust ribbing and excellent preservation
  • Authenticity: Guaranteed with Certificate of Authenticity

This rare Pachylytoceras toulosuim ammonite fossil from Eurecy, Calvados, France is both scientifically important and visually impressive, making it an ideal choice for collectors, researchers, and enthusiasts of Jurassic natural history.

Additional information

Era

Jurassic
Origin

France

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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