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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PSEUDOSONNERAITA Iridescent Fossil Ammonite Mother of Pearl Shell Lower Albian Cretaceous Madagascar Genuine

£14.40

Presenting an exquisite PSEUDOSONNERAITA iridescent fossil ammonite, featuring a brilliant natural Mother of Pearl shell preservation. This rare fossil hails from the Lower Albian Stage of the Early Cretaceous Period (approximately 113 to 110 million years ago), uncovered from the fossil-rich marine deposits of Madagascar.

Geology & Origin:

During the Lower Albian, Madagascar was submerged beneath warm, shallow seas that created the ideal conditions for ammonites to thrive and fossilize. Over millions of years, sedimentation and mineral replacement processes captured the fine details of their shells. In rare cases like this specimen, the original aragonite layers remained, displaying an enchanting iridescent “Mother of Pearl” effect that shifts with light.

Fossil Type & Species:

  • Type: Fossil Ammonite (Extinct marine cephalopod)
  • Species: Pseudosonneraita sp.
  • Preservation: Exceptional, with vivid mother of pearl iridescence

Features:

  • 100% genuine, natural fossil specimen
  • Supplied with a Certificate of Authenticity
  • Personally hand-selected for superior quality and beauty
  • Exact specimen shown in the listing photographs
  • Scale rule / cube shown = 1cm: See photo for full sizing

Why Buy From Us?

We specialize in offering authentic, hand-selected fossils that are carefully prepared to highlight their natural beauty. Every fossil includes a Certificate of Authenticity, giving you full assurance of its genuine nature.

A superb addition to any fossil collection, a fantastic educational piece, or a stunning natural decor item!

(Actual as seen)

Out of stock

SKU: SF0032 Category:

Description

Presenting an exquisite PSEUDOSONNERAITA iridescent fossil ammonite, featuring a brilliant natural Mother of Pearl shell preservation. This rare fossil hails from the Lower Albian Stage of the Early Cretaceous Period (approximately 113 to 110 million years ago), uncovered from the fossil-rich marine deposits of Madagascar.

Geology & Origin:

During the Lower Albian, Madagascar was submerged beneath warm, shallow seas that created the ideal conditions for ammonites to thrive and fossilize. Over millions of years, sedimentation and mineral replacement processes captured the fine details of their shells. In rare cases like this specimen, the original aragonite layers remained, displaying an enchanting iridescent “Mother of Pearl” effect that shifts with light.

Fossil Type & Species:

  • Type: Fossil Ammonite (Extinct marine cephalopod)
  • Species: Pseudosonneraita sp.
  • Preservation: Exceptional, with vivid mother of pearl iridescence

Features:

  • 100% genuine, natural fossil specimen
  • Supplied with a Certificate of Authenticity
  • Personally hand-selected for superior quality and beauty
  • Exact specimen shown in the listing photographs
  • Scale rule / cube shown = 1cm: See photo for full sizing

Why Buy From Us?

We specialize in offering authentic, hand-selected fossils that are carefully prepared to highlight their natural beauty. Every fossil includes a Certificate of Authenticity, giving you full assurance of its genuine nature.

A superb addition to any fossil collection, a fantastic educational piece, or a stunning natural decor item!

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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