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 Gruneria gruneri Ammonite Fossil Toarcian Jurassic France Genuine Collectable Specimen

RARE Gruneria gruneri Ammonite Fossil Toarcian Jurassic France Genuine Collectable Specimen

Original price was: £36.00.Current price is: £32.40.

Rare Gruneria gruneri Ammonite Fossil from France

This listing offers a rare Gruneria gruneri ammonite fossil from the Toarcian Stage of the Jurassic Period, discovered at Fugerolles Bully, Calvados, France. Ammonites are iconic marine fossils, prized by both collectors and scientists for their spiral shells and their importance as index fossils in dating Jurassic strata. This specimen represents an excellent example of the species Gruneria gruneri, showing distinctive morphological features from the early Toarcian seas of Western Europe.

Each fossil we provide is carefully chosen for preservation, detail, and authenticity. The photographs show an example of the actual specimen type you will receive, and every piece is accompanied by a Certificate of Authenticity

Geological Age and Locality

This ammonite dates to the Toarcian Stage of the Early Jurassic (c. 182–174 million years ago). The Toarcian is a significant interval in Earth’s history, marked by marine transgressions and widespread diversification of ammonites. Fossils from this age are especially valuable for stratigraphic studies, as ammonites evolved rapidly and provide precise correlation between rock layers.

The specimen comes from Fugerolles Bully in Calvados, Normandy, France, a region celebrated for its rich Jurassic marine deposits. The fine sediments of these deposits allowed for the excellent preservation of ammonites and other marine organisms, making them an important source for both research and private collections.

Morphology and Features of Gruneria gruneri

Gruneria gruneri is a distinctive ammonite with morphological traits typical of the Toarcian ammonite faunas. Its key features include:

  • Planispiral coiling with a compressed, tightly wound shell.
  • Prominent ribbing across the whorls, which often extend uninterrupted across the flanks.
  • Suture patterns characteristic of the genus Gruneria, reflecting the complex internal septa of ammonites.
  • Well-defined aperture and whorl section, making it a valuable species for identification and comparative study.

These features not only distinguish Gruneria gruneri but also make the fossil an excellent teaching and reference specimen, highlighting the diversity of ammonites during the Toarcian.

Scientific and Collector Importance

Ammonites belong to the subclass Ammonoidea within the class Cephalopoda, related to modern squid and octopus. Their shells provide critical insight into evolutionary biology, palaeoecology, and stratigraphy. As highly effective index fossils, ammonites like Gruneria gruneri are used to subdivide Jurassic time intervals into precise biozones.

The Toarcian ammonite faunas of France are particularly well studied, and Gruneria gruneri plays a key role in defining specific biozones within the lower Jurassic sequence. Its presence in collections offers not only aesthetic appeal but also scientific value.

Collector’s Details

  • Fossil Type: Ammonite (Gruneria gruneri)
  • Geological Age: Jurassic Period, Toarcian Stage (c. 182–174 million years ago)
  • Location: Fugerolles Bully, Calvados, Normandy, France
  • Phylum: Mollusca
  • Class: Cephalopoda
  • Subclass: Ammonoidea
  • Notable Features: Planispiral shell, ribbed whorls, diagnostic suture patterns
  • Condition: Authentic, well-preserved specimen with identifiable species characteristics
  • Sizing: Scale cube = 1cm. Full sizing visible in photographs.

Authenticity and Presentation

All of our fossils are 100% genuine specimens and include a Certificate of Authenticity. Each piece has been carefully chosen for its quality, preservation, and historical significance. The photographs show an example of the specimen type you will receive.

This Gruneria gruneri ammonite fossil from the Toarcian of France is a remarkable piece of natural history, offering collectors, educators, and enthusiasts an authentic connection to the ancient seas of the Jurassic. It is both a scientifically important fossil and a striking collectable specimen.

(Actual as seen)

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SKU: UF5711 Category:

Description

Rare Gruneria gruneri Ammonite Fossil from France

This listing offers a rare Gruneria gruneri ammonite fossil from the Toarcian Stage of the Jurassic Period, discovered at Fugerolles Bully, Calvados, France. Ammonites are iconic marine fossils, prized by both collectors and scientists for their spiral shells and their importance as index fossils in dating Jurassic strata. This specimen represents an excellent example of the species Gruneria gruneri, showing distinctive morphological features from the early Toarcian seas of Western Europe.

Each fossil we provide is carefully chosen for preservation, detail, and authenticity. The photographs show an example of the actual specimen type you will receive, and every piece is accompanied by a Certificate of Authenticity

Geological Age and Locality

This ammonite dates to the Toarcian Stage of the Early Jurassic (c. 182–174 million years ago). The Toarcian is a significant interval in Earth’s history, marked by marine transgressions and widespread diversification of ammonites. Fossils from this age are especially valuable for stratigraphic studies, as ammonites evolved rapidly and provide precise correlation between rock layers.

The specimen comes from Fugerolles Bully in Calvados, Normandy, France, a region celebrated for its rich Jurassic marine deposits. The fine sediments of these deposits allowed for the excellent preservation of ammonites and other marine organisms, making them an important source for both research and private collections.

Morphology and Features of Gruneria gruneri

Gruneria gruneri is a distinctive ammonite with morphological traits typical of the Toarcian ammonite faunas. Its key features include:

  • Planispiral coiling with a compressed, tightly wound shell.
  • Prominent ribbing across the whorls, which often extend uninterrupted across the flanks.
  • Suture patterns characteristic of the genus Gruneria, reflecting the complex internal septa of ammonites.
  • Well-defined aperture and whorl section, making it a valuable species for identification and comparative study.

These features not only distinguish Gruneria gruneri but also make the fossil an excellent teaching and reference specimen, highlighting the diversity of ammonites during the Toarcian.

Scientific and Collector Importance

Ammonites belong to the subclass Ammonoidea within the class Cephalopoda, related to modern squid and octopus. Their shells provide critical insight into evolutionary biology, palaeoecology, and stratigraphy. As highly effective index fossils, ammonites like Gruneria gruneri are used to subdivide Jurassic time intervals into precise biozones.

The Toarcian ammonite faunas of France are particularly well studied, and Gruneria gruneri plays a key role in defining specific biozones within the lower Jurassic sequence. Its presence in collections offers not only aesthetic appeal but also scientific value.

Collector’s Details

  • Fossil Type: Ammonite (Gruneria gruneri)
  • Geological Age: Jurassic Period, Toarcian Stage (c. 182–174 million years ago)
  • Location: Fugerolles Bully, Calvados, Normandy, France
  • Phylum: Mollusca
  • Class: Cephalopoda
  • Subclass: Ammonoidea
  • Notable Features: Planispiral shell, ribbed whorls, diagnostic suture patterns
  • Condition: Authentic, well-preserved specimen with identifiable species characteristics
  • Sizing: Scale cube = 1cm. Full sizing visible in photographs.

Authenticity and Presentation

All of our fossils are 100% genuine specimens and include a Certificate of Authenticity. Each piece has been carefully chosen for its quality, preservation, and historical significance. The photographs show an example of the specimen type you will receive.

This Gruneria gruneri ammonite fossil from the Toarcian of France is a remarkable piece of natural history, offering collectors, educators, and enthusiasts an authentic connection to the ancient seas of the Jurassic. It is both a scientifically important fossil and a striking collectable specimen.

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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