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Holcophylloceras mediterraneum Fossil Ammonite Jurassic Callovian Madagascar

Original price was: £60.00.Current price is: £48.00.

Holcophylloceras (Holcophylloceras) mediterraneum Fossil Ammonite – Callovian, Jurassic – Sakatara, Madagascar

About the Fossil:

This stunningly preserved Holcophylloceras (Holcophylloceras) mediterraneum ammonite fossil originates from the Callovian stage of the Middle Jurassic (~166-163 million years ago) and was discovered in Sakatara, Madagascar. Holcophylloceras is a genus of phylloceratid ammonites, known for their smooth, involute shells with prominent, complex suture patterns, making them a fascinating species within the ammonite lineage.

During the Middle Jurassic, ammonites like Holcophylloceras mediterraneum thrived in warm, shallow marine environments, where they played a crucial role in prehistoric marine food chains. Unlike many other ammonites, phylloceratids are believed to be deep-water cephalopods, exhibiting more hydrodynamic shell structures that enabled more efficient movement through the water. The Callovian-aged deposits of Madagascar are famous for yielding exquisitely preserved ammonites, offering valuable insight into the paleobiology of Jurassic seas.

Geology & Formation:

  • Geological Age: Callovian, Middle Jurassic (~166-163 million years ago)
  • Formation: Marine sedimentary deposits
  • Location: Sakatara, Madagascar
  • Preservation: Excellent fossilization with detailed suture patterns, smooth shell morphology, and original chamber structures

Why This Fossil?

✔ 100% Genuine Specimen – Comes with a Certificate of Authenticity

✔ Rare & Highly Collectible – A beautifully preserved specimen from the Alice Purnell Collection

✔ Perfect for Display or Study – Ideal for fossil collectors, students, and paleontology enthusiasts

✔ Scale Rule/Cube = 1cm – See photos for full sizing

The fossil in the photo is the exact specimen you will receive!

📦 Secure Packaging & Fast Shipping – Your fossil will be carefully packed for a safe journey!

(Actual as seen)

Only 1 left in stock

SKU: AF1088 Category:

Description

Fossil Identification

This listing features a Holcophylloceras (Holcophylloceras) mediterraneum (Catullo, 1848) fossil ammonite, identified as Callovian in age and Jurassic in geological period. The specimen is associated with SAKATARA, Madagascar, and comes from the Alice Purnell Collection. Its formal scientific name makes it an appealing addition for collectors who appreciate accurately identified ammonites, Jurassic fossils and palaeontological specimens with documented collection details.

Geological Context

The Callovian is a recognised stage within the Jurassic Period. Ammonites lived in ancient marine environments and are among the most useful fossil groups for studying Jurassic seas and geological time. Their shells can preserve valuable information about past marine ecosystems, evolutionary change and the distribution of fossil cephalopods through successive geological stages.

Holcophylloceras belongs to the fossil ammonite group, a particularly popular area of collecting because ammonites combine scientific importance with distinctive fossilised shell forms. The supplied identification of Holcophylloceras mediterraneum provides a specific taxonomic focus for this specimen and makes it suitable for educational displays, fossil collections, geology cabinets and palaeontology-themed interiors.

Collection Details

This fossil is from the Alice Purnell Collection and is associated with SAKATARA, Madagascar. The named collection connection adds useful background for collectors who value specimens presented with collection information. It can be displayed as part of a Jurassic fossil arrangement, an ammonite study collection or a broader selection of Madagascar fossils.

The specimen is offered as an identified fossil ammonite rather than an unclassified decorative fossil. Collectors may wish to use the scientific identification when researching Callovian ammonites, Jurassic marine life and the wider history of ammonite evolution. The formal author citation, Catullo, 1848, is retained as supplied with the identification.

Display and Sizing

Full sizing is shown in the photographs. The images are intended to provide the clearest visual reference for the actual fossil offered in this listing, including its presentation and visible characteristics. This makes the specimen suitable for collectors who want to assess the piece before purchase and plan its display in a cabinet, study, classroom or geological collection.

Authenticity and Photograph Information

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The photograph shows the actual specimen you will receive.

Ideal for fossil collectors, ammonite enthusiasts, students of Jurassic geology, museum-style displays and anyone interested in scientifically named specimens from Madagascar. The combination of a specific Holcophylloceras identification, Callovian Jurassic age, SAKATARA association and Alice Purnell Collection background gives this fossil a strong place in a focused palaeontology collection.

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