4.75″ Liosphinctes apolipon Fossil Ammonite – Lower Oxfordian Stage, Jurassic – Calvados, France – Alice Purnell Collection

Description

This listing features a beautifully preserved 4.75″ fossil ammonite of the species Liosphinctes apolipon from the Lower Oxfordian Stage of the Jurassic period, discovered in the well-known fossil-bearing deposits of Calvados, France. This rare specimen is part of the prestigious Alice Purnell Collection, celebrated for its museum-grade, scientifically documented fossils.

Liosphinctes is a genus of extinct ammonites within the family Perisphinctidae, known for their strongly ribbed and moderately evolute shells. These ammonites were free-swimming marine cephalopods that lived approximately 163 to 157 million years ago, navigating warm Jurassic seas with jet propulsion, feeding on small fish and crustaceans.

This Liosphinctes apolipon specimen exhibits classic features of the genus: strong ribbing, a compressed shell, and a cleanly preserved spiral whorl. Its compact and detailed form makes it both a scientifically valuable and visually appealing fossil.

Geological Context: This ammonite comes from Calvados, Normandy, a region in northern France rich in Oxfordian-age sedimentary layers. The Lower Oxfordian Stage marks a time of widespread marine deposition and faunal diversification during the Late Jurassic. Warm, shallow seas dominated this part of Europe, resulting in ideal conditions for fossil preservation, especially of ammonites.

Key Details:

• Species: Liosphinctes apolipon (Ammonite)
• Fossil Type: Extinct marine cephalopod
• Age: Lower Oxfordian Stage, Jurassic (~163–157 million years ago)
• Location Found: Calvados, France
• Provenance: From the Alice Purnell Collection
• Size: Approx. 4.75 inches – see 1cm scale cube in photo for reference
• Condition: Excellent preservation with distinct ribbing and spiral
• Authenticity: 100% genuine fossil, supplied with a Certificate of Authenticity
• Photo: The exact specimen shown is what you will receive

Scientific & Display Value: Ammonites like Liosphinctes apolipon are prized both for their use in biostratigraphy and their stunning natural geometry. This fossil is a fine example of Lower Oxfordian ammonite evolution and provides both educational and aesthetic value. Its inclusion in the Alice Purnell Collection adds an extra layer of provenance and trust.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

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Add a striking Jurassic marine relic to your collection with this authentic 4.75″ Liosphinctes apolipon fossil ammonite from Calvados, France.