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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Polished Ammonite Fossil Slice – Cretaceous Ammonite from Madagascar – Cut & Polished to Reveal Internal Chambers – Genuine Fossil with COA
Polished Ammonite Fossil Slice – Cretaceous Ammonite from Madagascar – Cut & Polished to Reveal Internal Chambers – Genuine Fossil with COA - Image 2

Polished Ammonite Fossil Slice – Cretaceous Ammonite from Madagascar – Cut & Polished to Reveal Internal Chambers – Genuine Fossil with COA

£18.00

All our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity
**Please note: Some fossils may be propped up for photo purposes**
Specimen: Ammonite
Age: Cretaceous
Location: Madagascar
Size (picture scale cube=1cm): 39 x 18 x 31mm (1.54 x 0.71 x 1.22 inches) Each
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, that had a coiled external shell similar to that of the modern-day nautilus, and although they resembled a nautilus, these molluscs are more closely related to living Coleoids, i.e. octopus, squid, and cuttlefish!
These stunningly beautiful Ammonites have been sliced in half and polished to expose the amazingly colourful inner chambers of the fossil.
**Stands not included**
**The image shows the ACTUAL specimen you will receive**
**Please note the following:
1) This items picture will change once we update the listing to a new replacement specimen after this specific item has been sold, this action will cause the picture in your purchase history to also change to the new image.
2) The picture will also change if you’ve had the item in your basket for a while and someone else buys it during that period (having items stored in your basket does not remove that listing from the view of other customers, meaning it will still be active on eBay).
3) We would suggest saving, or taking a screenshot of the items image as soon as you have purchased it for your own records of comparison for once the item has been received in the post. We also keep a record of every image we upload.

(Actual as seen)

Only 1 left in stock

SKU: FP9755 Category:

Description

This stunning specimen is a genuine fossil ammonite from the Cretaceous Period (approx. 145–66 million years ago), unearthed in the fossil-rich sediments of Madagascar. These ammonites have been expertly sliced and polished to reveal their beautiful inner structure—showcasing the intricate chambers that once helped the living animal control its buoyancy in ancient tropical seas.

Ammonites were marine cephalopods, closely related to modern squid, octopuses, and cuttlefish. They thrived in Earth’s oceans for over 175 million years, first appearing in the Devonian period and going extinct at the end of the Cretaceous, along with the dinosaurs. Despite their resemblance to a snail’s shell, ammonites are molluscs with a rich evolutionary link to Coleoids, rather than gastropods.

The sliced and polished halves highlight the mineralisation and preservation of the fossil over millions of years. The inner chambers may be filled with calcite, aragonite, agate, or other minerals that give each piece its unique character. These fossils make for striking display pieces, educational tools, or meaningful gifts.

Item Details:

  • Fossil Type: Ammonite (cut & polished slice)
  • Age: Cretaceous Period (~145.5–66 million years ago)
  • Location: Madagascar
  • Scale Reference: Please refer to the 1cm scale cube in the photo
  • Certificate of Authenticity: Included
  • Stands: Not included

ACTUAL AS SEEN:

The photo shows the exact specimen you will receive. Each fossil is individually selected, cleaned, and professionally photographed. Please note that colours and contrasts may vary slightly depending on lighting and monitor settings.

Important Notes:

  1. Once this specific specimen is sold, the listing will be updated with a new replacement item and photo, which will also update the picture in your purchase history.
  2. If you have this item in your basket and someone else purchases it first, it will still appear active until the listing refreshes.
  3. We recommend saving or screenshotting the image of your item at the time of purchase for your records. (We also keep a copy of every image uploaded.)

100% Genuine Fossil – Professionally Prepared – Certificate of Authenticity Included – Ideal for Collectors, Gifts & Display

Additional information

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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