Cretaceous Ammonite Fossil from Madagascar – Natural Nautilus Relative – Ancient Marine Cephalopod – Collectible Geological Specimen

Description

Discover a spectacular piece of Earth’s ancient marine history with this genuine Cretaceous Ammonite Fossil from Madagascar. Ammonites are one of the most iconic and visually striking fossils, known worldwide for their beautiful spiral shell structure, which resembles that of modern snails. However, these creatures were not gastropods—they were marine cephalopods, more closely related to squid, octopuses, and cuttlefish.

Ammonites thrived in Earth’s oceans between 240 and 65 million years ago, before their extinction at the end of the Cretaceous period. Their coiled, chambered shells not only provided buoyancy control in the water, but also leave behind fossilised specimens that are both scientifically significant and aesthetically stunning.

This particular fossil comes from the rich fossil beds of Madagascar, known for yielding highly detailed ammonite specimens with excellent preservation. Some ammonites were tiny—just a few millimetres across—while others reached up to 8 feet (96 inches) in diameter, making them some of the largest invertebrates in the fossil record.

Item Details:

• Specimen: Ammonite
• Species: Cleoniceras (or similar genus typical of Madagascar)
• Age: Cretaceous Period (approximately 145–66 million years old)
• Location Found: Madagascar
• Fossil Type: Coiled, chambered cephalopod shell
• Scale Reference: Cube = 1cm (please refer to photo for accurate sizing)
• Certificate of Authenticity: Included with your purchase

ACTUAL AS SEEN:

The image shown is the EXACT specimen you will receive. Each fossil is carefully hand-selected, professionally prepared, and individually photographed to ensure you receive a one-of-a-kind piece.

Measurements are as accurate as possible, but slight variations may occur due to natural irregularities in fossil shape.

Colour may vary slightly depending on lighting conditions or screen settings.

Please Note:

• Some fossils may be propped up for photography.
• Once this item is sold, the listing will be updated with a new fossil and corresponding photo.
• If you’ve added this item to your cart and someone else purchases it first, the listing image may change to reflect the new specimen.
• We recommend taking a screenshot of the specimen you’ve purchased for your personal records. We also maintain a visual archive of all sold specimens.

100% Genuine Cretaceous Fossil – Professionally Selected – Certificate of Authenticity Included

Bring the ancient oceans to your collection with this remarkable Madagascan ammonite fossil. Ideal for collectors, educators, or as a unique and meaningful gift.