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 pair from madagascar – cretaceous age – genuine sliced ammonite with visible chambers – certificate included

Polished ammonite fossil pair from madagascar – cretaceous age – genuine sliced ammonite with visible chambers – certificate included

Original price was: £27.00.Current price is: £21.60.

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

 

Specimen: Ammonite Pair

Age: Cretaceous

Location: Madagascar

Size (picture scale cube=1cm):   65 x 19 x 54mm (2.56 x 0.75 x 2.13 inches)

 

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.

This stunningly beautiful Ammonite has been sliced in half and polished to expose the amazing colourful chambers inside the fossil.

 

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: FP9918 Category:

Description

This listing features a stunning pair of sliced and polished Ammonite fossils from the Cretaceous Period, unearthed in the rich fossil beds of Madagascar. These genuine specimens date back approximately 145 to 66 million years ago, offering a beautifully preserved glimpse into Earth’s prehistoric marine life.

Ammonites are among the most iconic and widely recognised fossils, instantly familiar due to their signature spiral shell structure. Despite their resemblance to modern snail shells, Ammonites were marine cephalopods and are more closely related to living creatures such as octopuses, squids, and cuttlefish. They inhabited the ancient seas for over 175 million years, thriving from the Devonian period up to the mass extinction event at the end of the Cretaceous.

This fossil pair has been precisely sliced and polished, revealing the intricate inner chamber structure that once helped the animal regulate its buoyancy. The result is a cross-sectional view of the ammonite’s beautiful natural geometry — often showcasing rich browns, creams, and subtle mineral infillings formed during fossilisation.

These make for excellent display pieces, educational tools, or treasured additions to any fossil collection.

Item Details:

  • Specimen: Ammonite Pair (sliced and polished)
  • Age: Cretaceous Period (~145–66 million years ago)
  • Location: Madagascar
  • Scale Reference: Scale cube = 1cm. Please refer to photo for full sizing.
  • Certificate of Authenticity: Included

ACTUAL AS SEEN:

The image shows the exact specimen you will receive. Each fossil is hand-selected and professionally photographed for accuracy and transparency.

Please Note:

  • Some fossils may be gently propped for photography purposes.
  • Size and colour may vary slightly based on lighting and monitor settings.
  • Once sold, this listing will be updated with a new similar item and fresh images.
  • We recommend saving or screenshotting your purchase photo for personal records, as listings update with each new specimen.
  • All photos are archived for verification.

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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