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.

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Cretaceous Ammonite Fossil – Genuine Spiral Shell from Madagascar – Natural Marine Fossil – Certificate of Authenticity – Actual Specimen

Cretaceous Ammonite Fossil – Genuine Spiral Shell from Madagascar – Natural Marine Fossil – Certificate of Authenticity – Actual Specimen

Original price was: £24.00.Current price is: £19.20.

Ammonites are one of the most recognisable fossils around, this is due to their familiar spiral shape shell, reminiscent of what we know as a snail shell, though these creatures are not related to snails at all! They were marine animals, present between 240 – 65 million years ago, who had a coiled external shell similar to that of the modern nautilus, and although they resembled a modern day nautilus, these molluscs are more closely related to living coleoids i.e. octopuses, squid, and cuttlefish.

These creatures varied in size, ranging from only a few millimetres to some fossils being found measuring a whopping 8 feet 96 inches.

 

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

 

**Please note: Some fossils maybe propped up for photo purpose**

 

Specimen: Ammonite

Age: Cretaceous

Location: Madagascar

Size:  99 x 77 x 21mm (3.9 x 3.03 x 0.83 inches)

 

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The specimen has been carefully hand selected and photographed. Measurements are as accurate as possible, though be aware measuring precise dimensions can be difficult from irregular shaped items. Whilst we portray colours as close to life-like as we can, colours will vary if taken in sunlight, indoors, from monitor to monitor and device to device. Once this specimen is sold, we will update this listing with new similar selected item, with a new photo and dimensions.

(Actual as seen)

Only 1 left in stock

SKU: FP9734 Category:

Description

This is a genuine Cretaceous Ammonite Fossil from Madagascar, a stunning relic from an ancient oceanic world. Ammonites are among the most iconic and recognisable fossils due to their elegant spiral shells, often mistaken for snail shells, though they are not related.

These fascinating creatures lived between 240 to 65 million years ago and were marine molluscs with coiled external shells. Despite their resemblance to modern-day nautiluses, ammonites are more closely related to today’s squid, cuttlefish, and octopuses—collectively known as coleoids.

Ammonites thrived in prehistoric seas, and their fossils have been discovered globally in various sizes—from tiny species just a few millimetres across to truly massive specimens reaching up to 8 feet (96 inches) in diameter.

This particular ammonite has been carefully selected for its clarity, natural preservation, and aesthetic appeal. Madagascar is renowned for its well-preserved ammonites, with excellent fossilisation that allows intricate details of the shell structure to be visible.

Whether you are a fossil enthusiast, a collector, or someone who appreciates natural history and decorative pieces, this ammonite is a beautiful and meaningful addition to any collection or gift.

Item Details:

  • Specimen: Ammonite
  • Age: Cretaceous Period
  • Location Found: Madagascar
  • Size Reference: Scale cube = 1cm (see photo)
  • Certificate of Authenticity: Included

ACTUAL AS SEEN: The photo shows the EXACT specimen you will receive. Each fossil is individually selected, cleaned, and photographed with care. Measurements are as accurate as possible, though minor discrepancies may occur due to the irregular nature of fossil shapes.

Colour may appear slightly different based on lighting conditions or screen settings. Once this item sells, the listing will be updated with a new specimen and photographs.

Please Note:

  • Some fossils may be propped for photographic purposes.
  • We suggest saving or screenshotting your listing image after purchase for your records.

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

Additional information

Weight 1 g
Era

Cretaceous
Origin

Madagascar

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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