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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Aioloceras iridescent fossil ammonite with mother of pearl shell – albian, cretaceous – madagascar – certified genuine specimen
Aioloceras iridescent fossil ammonite with mother of pearl shell – albian, cretaceous – madagascar – certified genuine specimen - Image 2

Aioloceras iridescent fossil ammonite with mother of pearl shell – albian, cretaceous – madagascar – certified genuine specimen

Original price was: £36.00.Current price is: £32.40.

This listing features a stunning Aioloceras fossil ammonite showcasing exceptional iridescence with a preserved mother of pearl shell. This beautiful and highly displayable specimen hails from the Albian stage of the Early Cretaceous period, approximately 113 to 100 million years ago, and was unearthed in Madagascar, one of the world’s most celebrated fossil-rich localities.

Aioloceras is an extinct genus of fast-swimming marine cephalopods, part of the larger subclass Ammonoidea. These creatures thrived in warm, shallow seas, using jet propulsion to navigate and hunt for prey. The shell structure of Aioloceras is often tightly coiled and can preserve its iridescent nacre layer under ideal fossilisation conditions – as seen in this specimen.

This ammonite fossil has been carefully prepared and polished to enhance the vibrant colours of the nacre, revealing a natural rainbow of shimmering pinks, greens, blues, and golds. It is a prime example of Madagascar’s unique fossil preservation, making it both a scientifically important and visually striking addition to any collection.

Key Details:

  • Genus: Aioloceras
  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Shell Feature: Iridescent nacre (mother of pearl)
  • Age: Albian, Early Cretaceous (~113–100 million years ago)
  • Location Found: Madagascar
  • Size: Refer to photo with 1cm scale rule or cube
  • Authenticity: 100% Genuine – Certificate of Authenticity included
  • Image: You will receive the exact specimen shown in the photo

Scientific Importance:

Ammonites like Aioloceras are key index fossils used to date sedimentary rocks and marine deposits from the Cretaceous. Their rapid evolutionary changes and widespread distribution make them essential tools in stratigraphy. The iridescence of this specimen also provides insight into the shell composition and burial environment, adding to its scientific value.

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

Fast & Secure Worldwide Shipping – Expertly packed and insured for safe delivery.

Whether you’re a seasoned collector, educator, or someone looking for a natural art piece, this iridescent Aioloceras ammonite fossil is a brilliant addition to any collection or display.

(Actual as seen)

Only 1 left in stock

SKU: SF0018 Category:

Description

This listing features a stunning Aioloceras fossil ammonite showcasing exceptional iridescence with a preserved mother of pearl shell. This beautiful and highly displayable specimen hails from the Albian stage of the Early Cretaceous period, approximately 113 to 100 million years ago, and was unearthed in Madagascar, one of the world’s most celebrated fossil-rich localities.

Aioloceras is an extinct genus of fast-swimming marine cephalopods, part of the larger subclass Ammonoidea. These creatures thrived in warm, shallow seas, using jet propulsion to navigate and hunt for prey. The shell structure of Aioloceras is often tightly coiled and can preserve its iridescent nacre layer under ideal fossilisation conditions – as seen in this specimen.

This ammonite fossil has been carefully prepared and polished to enhance the vibrant colours of the nacre, revealing a natural rainbow of shimmering pinks, greens, blues, and golds. It is a prime example of Madagascar’s unique fossil preservation, making it both a scientifically important and visually striking addition to any collection.

Key Details:

  • Genus: Aioloceras
  • Fossil Type: Ammonite (extinct marine cephalopod)
  • Shell Feature: Iridescent nacre (mother of pearl)
  • Age: Albian, Early Cretaceous (~113–100 million years ago)
  • Location Found: Madagascar
  • Size: Refer to photo with 1cm scale rule or cube
  • Authenticity: 100% Genuine – Certificate of Authenticity included
  • Image: You will receive the exact specimen shown in the photo

Scientific Importance:

Ammonites like Aioloceras are key index fossils used to date sedimentary rocks and marine deposits from the Cretaceous. Their rapid evolutionary changes and widespread distribution make them essential tools in stratigraphy. The iridescence of this specimen also provides insight into the shell composition and burial environment, adding to its scientific value.

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

Fast & Secure Worldwide Shipping – Expertly packed and insured for safe delivery.

Whether you’re a seasoned collector, educator, or someone looking for a natural art piece, this iridescent Aioloceras ammonite fossil is a brilliant addition to any collection or 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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