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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Rare iridescent baculites fossil ammonite – eubaculites otacodensis, maastrichtian, cretaceous, canada – genuine specimen with coa
Rare iridescent baculites fossil ammonite – eubaculites otacodensis, maastrichtian, cretaceous, canada – genuine specimen with coa - Image 2
Rare iridescent baculites fossil ammonite – eubaculites otacodensis, maastrichtian, cretaceous, canada – genuine specimen with coa - Image 3

Rare iridescent baculites fossil ammonite – eubaculites otacodensis, maastrichtian, cretaceous, canada – genuine specimen with coa

Original price was: £132.00.Current price is: £105.60.

This is a rare and beautifully iridescent Eubaculites otacodensis ammonite fossil, dating back to the Maastrichtian stage of the Late Cretaceous period (~72-66 million years ago), discovered in Canada. Eubaculites is a genus of straight-shelled ammonites, an extinct group of marine cephalopods closely related to modern squid and cuttlefish. Unlike their coiled relatives, Eubaculites developed a long, uncoiled shell, which provided unique buoyancy adaptations for open marine environments.

What makes this specimen truly special is its stunning natural iridescence, caused by the preservation of the original nacreous shell layers, reflecting vibrant colors under light. This rare ammonite fossil is highly sought after for both its scientific importance and aesthetic appeal.

Geological Information:

  • Formation: Upper Cretaceous Marine Deposits
  • Stage: Maastrichtian (~72-66 million years old)
  • Location: Canada
  • Depositional Environment: Marine seafloor sediments from the Western Interior Seaway

Fossil Characteristics:

  • Straight-shelled ammonite with well-defined suture patterns
  • Exceptional iridescent nacreous shell preservation
  • Rare Late Cretaceous specimen from Canada
  • Highly collectible fossil with both scientific and aesthetic value

Key Features:

  • Authentic Eubaculites otacodensis fossil ammonite
  • Rare iridescent preservation of the original shell structure
  • From the Alice Purnell Collection
  • 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

(Actual as seen)

Only 1 left in stock

SKU: AF0524 Category:

Description

This is a rare and beautifully iridescent Eubaculites otacodensis ammonite fossil, dating back to the Maastrichtian stage of the Late Cretaceous period (~72-66 million years ago), discovered in Canada. Eubaculites is a genus of straight-shelled ammonites, an extinct group of marine cephalopods closely related to modern squid and cuttlefish. Unlike their coiled relatives, Eubaculites developed a long, uncoiled shell, which provided unique buoyancy adaptations for open marine environments.

What makes this specimen truly special is its stunning natural iridescence, caused by the preservation of the original nacreous shell layers, reflecting vibrant colors under light. This rare ammonite fossil is highly sought after for both its scientific importance and aesthetic appeal.

Geological Information:

  • Formation: Upper Cretaceous Marine Deposits
  • Stage: Maastrichtian (~72-66 million years old)
  • Location: Canada
  • Depositional Environment: Marine seafloor sediments from the Western Interior Seaway

Fossil Characteristics:

  • Straight-shelled ammonite with well-defined suture patterns
  • Exceptional iridescent nacreous shell preservation
  • Rare Late Cretaceous specimen from Canada
  • Highly collectible fossil with both scientific and aesthetic value

Key Features:

  • Authentic Eubaculites otacodensis fossil ammonite
  • Rare iridescent preservation of the original shell structure
  • From the Alice Purnell Collection
  • 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm
Era

Cretaceous
Origin

Canada

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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