Denkmania Fossil Ammonite – Upper Toarcian Stage, Jurassic – France – Alice Purnell Collection – 100% Genuine with Certificate

Description

This listing features an authentic fossil ammonite of the genus Denkmania from the Upper Toarcian stage of the Jurassic period, dating to approximately 180 to 175 million years ago. This beautifully preserved specimen was discovered in France and is part of the prestigious Alice Purnell Collection, known for its museum-quality, scientifically documented fossil specimens.

Denkmania is a lesser-known but scientifically significant genus of extinct ammonite, a group of shelled marine cephalopods that thrived in Jurassic seas. These creatures had coiled shells divided into chambers that they used for buoyancy control, similar to their modern relatives—the nautilus, though they were more closely related to octopuses and squids.

Ammonites like Denkmania were active swimmers and important predators in the Mesozoic marine ecosystem. Their rapid evolution and wide geographic distribution make them invaluable for stratigraphic dating and palaeontological research.

Geological Context: The Upper Toarcian Stage is part of the Early Jurassic epoch and represents a time of significant marine transgression, with warm, shallow seas spreading across much of Europe. French Toarcian deposits are world-famous for yielding exquisitely preserved ammonites and marine fossils, reflecting the biodiversity of these ancient ecosystems.

Key Details:

• Genus: Denkmania (Ammonite)
• Fossil Type: Extinct marine cephalopod
• Age: Upper Toarcian Stage, Early Jurassic (~180–175 million years ago)
• Location Found: France
• Provenance: From the Alice Purnell Collection
• Condition: Well-preserved with visible ribbing and classic coiled structure
• Authenticity: 100% genuine fossil, supplied with a Certificate of Authenticity
• Scale: Please refer to scale cube (1cm) in photo for full sizing
• Photo: The exact specimen shown is what you will receive

Scientific & Display Value: Fossils of Denkmania are relatively rare and highly valued by collectors and researchers for their palaeontological relevance. This specimen, with its classic ammonite form and origin from a notable collection, offers both educational and aesthetic value. It’s an excellent addition to any fossil display or natural history collection.

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

Fast & Secure Shipping – Carefully packaged and promptly shipped to ensure safe delivery.

Enhance your collection with this beautifully preserved Denkmania fossil ammonite from the Upper Toarcian of Jurassic France—a unique specimen from the renowned Alice Purnell Collection.