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.
Perisphinctes crassus Fossil Ammonite – Oxfordian Jurassic – Poitiers France – Genuine Specimen with Certificate
£14.40Original price was: £14.40.£12.96Current price is: £12.96.
This listing features a beautifully preserved Perisphinctes crassus fossil ammonite from the Oxfordian Stage of the Jurassic Period, sourced from the renowned fossil-bearing strata near Poitiers, France. This striking ammonite is a superb example of the genus Perisphinctes, known for its strong ribbing and significance in Jurassic biostratigraphy.
Fossil Type: Ammonite (extinct marine mollusc)
Species: Perisphinctes crassus
Geological Period: Jurassic
Geological Stage: Oxfordian (~163 to 157 million years ago)
Locality: Poitiers, Nouvelle-Aquitaine, France
Formation: Typically associated with marly limestones and carbonate beds of the Upper Jurassic
Scientific & Geological Details:
Order: Ammonitida
Superfamily: Perisphinctoidea
Family: Perisphinctidae
Morphological Features:
Moderately evolute shell with prominent, bifurcating ribs
Strong, coarse ornamentation with thickened whorls
Umbilicus wide and well-defined
The ribbing style and robustness of this species are distinctive and assist in both identification and classification
Biozone:
Often placed within the Perisphinctes plicatilis or Bifurcatus biozones of the Upper Oxfordian
Depositional Environment:
Formed in warm, shallow epicontinental seas along the northern margin of the Tethys Ocean
Preserved in finely laminated, fossiliferous limestone and marl with high calcium content, ideal for detailed fossil preservation
Notable:
Perisphinctes crassus is a stratigraphically important ammonite used in dating and correlating Oxfordian marine sediments across Europe
Its robust shell makes it a favourite among collectors seeking visually impressive specimens
Formal Identification:
The genus Perisphinctes was first described by Waagen in 1871, with P. crassus subsequently classified based on its coarsely ribbed shell morphology
Why This Fossil is Special:
Authentic representation of a globally significant ammonite genus
Sourced from a classic European Jurassic fossil site near Poitiers
Ideal for collectors, educators, or as a decorative piece with scientific value
The specimen’s preservation reveals key evolutionary features of Oxfordian ammonites
Additional Information:
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
Scale Rule Squares / Cube = 1cm: Full sizing, please see photo
You will receive the exact fossil shown in the photographs – a carefully selected, high-quality piece prepared for display and study
This listing features a beautifully preserved Perisphinctes crassus fossil ammonite from the Oxfordian Stage of the Jurassic Period, sourced from the renowned fossil-bearing strata near Poitiers, France. This striking ammonite is a superb example of the genus Perisphinctes, known for its strong ribbing and significance in Jurassic biostratigraphy.
Fossil Type: Ammonite (extinct marine mollusc)
Species: Perisphinctes crassus
Geological Period: Jurassic
Geological Stage: Oxfordian (~163 to 157 million years ago)
Locality: Poitiers, Nouvelle-Aquitaine, France
Formation: Typically associated with marly limestones and carbonate beds of the Upper Jurassic
Scientific & Geological Details:
Order: Ammonitida
Superfamily: Perisphinctoidea
Family: Perisphinctidae
Morphological Features:
Moderately evolute shell with prominent, bifurcating ribs
Strong, coarse ornamentation with thickened whorls
Umbilicus wide and well-defined
The ribbing style and robustness of this species are distinctive and assist in both identification and classification
Biozone:
Often placed within the Perisphinctes plicatilis or Bifurcatus biozones of the Upper Oxfordian
Depositional Environment:
Formed in warm, shallow epicontinental seas along the northern margin of the Tethys Ocean
Preserved in finely laminated, fossiliferous limestone and marl with high calcium content, ideal for detailed fossil preservation
Notable:
Perisphinctes crassus is a stratigraphically important ammonite used in dating and correlating Oxfordian marine sediments across Europe
Its robust shell makes it a favourite among collectors seeking visually impressive specimens
Formal Identification:
The genus Perisphinctes was first described by Waagen in 1871, with P. crassus subsequently classified based on its coarsely ribbed shell morphology
Why This Fossil is Special:
Authentic representation of a globally significant ammonite genus
Sourced from a classic European Jurassic fossil site near Poitiers
Ideal for collectors, educators, or as a decorative piece with scientific value
The specimen’s preservation reveals key evolutionary features of Oxfordian ammonites
Additional Information:
All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
Scale Rule Squares / Cube = 1cm: Full sizing, please see photo
You will receive the exact fossil shown in the photographs – a carefully selected, high-quality piece prepared for display and study
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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