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 Hildoceras sublevison Ammonite Fossil, Lower Toarcian Stage Jurassic, Authentic Italian Collectors Piece with COA

Rare Hildoceras sublevison Ammonite Fossil, Lower Toarcian Stage Jurassic, Authentic Italian Collectors Piece with COA

£14.40

Authentic Jurassic Ammonite Fossil

This listing is for a genuine Hildoceras sublevison Ammonite Fossil from the Lower Toarcian Stage of the Early Jurassic period, discovered in Italy. Ammonites are extinct marine molluscs belonging to the subclass Ammonoidea within the order Ammonitida. Known for their coiled, chambered shells, these remarkable creatures thrived in the ancient oceans between the Devonian and the Cretaceous, before their extinction around 66 million years ago. This specimen is a carefully selected piece that highlights the intricate morphology and natural preservation of the species. The accompanying photos show the exact fossil you will receive, with a scale cube of 1 cm squares provided for precise sizing.

Geological Context – Lower Toarcian, Jurassic

The fossil originates from the Lower Toarcian, a subdivision of the Early Jurassic, dating to approximately 182–174 million years ago. This was a time of significant evolutionary radiation in ammonites, and the Toarcian seas of what is now Italy were rich in marine life. The strata where these ammonites are found often represent marine sedimentary environments deposited in shallow to moderately deep waters. The conditions favored the preservation of these intricate shells, leaving behind specimens that now provide a direct glimpse into ancient marine ecosystems.

Species Details – Hildoceras sublevison

The species Hildoceras sublevison belongs to the family Hildoceratidae, within the superfamily Hildoceratoidea. Ammonites of this group are characterized by their evolute to involute shells, ribbed ornamentation, and pronounced whorls. In particular, Hildoceras are notable for their strong ribbing patterns and compressed whorls, features that helped paleontologists classify and identify them within specific biozones. This genus is widely used in Jurassic stratigraphy as a biostratigraphic marker, making it scientifically valuable as well as aesthetically appealing.

Morphological Features

The fossil displays key features typical of Hildoceras ammonites:

  • Coiled, planispiral shell structure with visible ribbing.
  • Smoothly compressed whorls that curve elegantly toward the aperture.
  • Subtle suture lines marking the junctions between septa, showcasing the complex internal structure of the shell.
  • Distinctive shape and preservation that make it easily recognizable compared to other Jurassic ammonites.

These features highlight both its scientific significance and its natural beauty as a display piece for collectors, educators, or enthusiasts of natural history.

Collector’s and Scientific Value

Ammonites such as this one are highly sought after due to their importance in both paleontology and geology. The Hildoceras genus is often used to help date Jurassic strata because of its well-documented evolutionary development. Owning a specimen like this not only brings a piece of deep geological time into your collection but also provides a tangible example of a key reference fossil used by geologists worldwide.

100% Genuine with Certificate of Authenticity

All of our fossils are guaranteed 100% genuine specimens. This ammonite fossil comes with a Certificate of Authenticity for complete peace of mind. Unlike replicas or mass-produced casts, this is an authentic, naturally preserved fossil, carefully sourced and selected for quality.

Perfect for Display or Study

Whether you are a seasoned fossil collector, a student of geology, or simply an admirer of natural history, this Jurassic ammonite fossil from Italy makes an excellent addition. Its geological significance, aesthetic appeal, and rarity make it a versatile piece suitable for private collections, educational use, or as a unique natural history display.

Scale Rule Squares / Cube = 1 cm. Please refer to the listing photos for full sizing of this actual specimen.

 

(Actual as seen)

Only 1 left in stock

SKU: SF1216 Category:

Description

Authentic Jurassic Ammonite Fossil

This listing is for a genuine Hildoceras sublevison Ammonite Fossil from the Lower Toarcian Stage of the Early Jurassic period, discovered in Italy. Ammonites are extinct marine molluscs belonging to the subclass Ammonoidea within the order Ammonitida. Known for their coiled, chambered shells, these remarkable creatures thrived in the ancient oceans between the Devonian and the Cretaceous, before their extinction around 66 million years ago. This specimen is a carefully selected piece that highlights the intricate morphology and natural preservation of the species. The accompanying photos show the exact fossil you will receive, with a scale cube of 1 cm squares provided for precise sizing.

Geological Context – Lower Toarcian, Jurassic

The fossil originates from the Lower Toarcian, a subdivision of the Early Jurassic, dating to approximately 182–174 million years ago. This was a time of significant evolutionary radiation in ammonites, and the Toarcian seas of what is now Italy were rich in marine life. The strata where these ammonites are found often represent marine sedimentary environments deposited in shallow to moderately deep waters. The conditions favored the preservation of these intricate shells, leaving behind specimens that now provide a direct glimpse into ancient marine ecosystems.

Species Details – Hildoceras sublevison

The species Hildoceras sublevison belongs to the family Hildoceratidae, within the superfamily Hildoceratoidea. Ammonites of this group are characterized by their evolute to involute shells, ribbed ornamentation, and pronounced whorls. In particular, Hildoceras are notable for their strong ribbing patterns and compressed whorls, features that helped paleontologists classify and identify them within specific biozones. This genus is widely used in Jurassic stratigraphy as a biostratigraphic marker, making it scientifically valuable as well as aesthetically appealing.

Morphological Features

The fossil displays key features typical of Hildoceras ammonites:

  • Coiled, planispiral shell structure with visible ribbing.
  • Smoothly compressed whorls that curve elegantly toward the aperture.
  • Subtle suture lines marking the junctions between septa, showcasing the complex internal structure of the shell.
  • Distinctive shape and preservation that make it easily recognizable compared to other Jurassic ammonites.

These features highlight both its scientific significance and its natural beauty as a display piece for collectors, educators, or enthusiasts of natural history.

Collector’s and Scientific Value

Ammonites such as this one are highly sought after due to their importance in both paleontology and geology. The Hildoceras genus is often used to help date Jurassic strata because of its well-documented evolutionary development. Owning a specimen like this not only brings a piece of deep geological time into your collection but also provides a tangible example of a key reference fossil used by geologists worldwide.

100% Genuine with Certificate of Authenticity

All of our fossils are guaranteed 100% genuine specimens. This ammonite fossil comes with a Certificate of Authenticity for complete peace of mind. Unlike replicas or mass-produced casts, this is an authentic, naturally preserved fossil, carefully sourced and selected for quality.

Perfect for Display or Study

Whether you are a seasoned fossil collector, a student of geology, or simply an admirer of natural history, this Jurassic ammonite fossil from Italy makes an excellent addition. Its geological significance, aesthetic appeal, and rarity make it a versatile piece suitable for private collections, educational use, or as a unique natural history display.

Scale Rule Squares / Cube = 1 cm. Please refer to the listing photos for full sizing of this actual specimen.

 

Additional information

Era

Jurassic
Origin

Italy

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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