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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Deltoideum delta fossil oyster – jurassic marine bivalve – kimmeridge clay, dorset, uk – 100% genuine with certificate

Deltoideum delta fossil oyster – jurassic marine bivalve – kimmeridge clay, dorset, uk – 100% genuine with certificate

£9.00

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

 

 

Specimen: Deltoideum delta

Age: Kimmeridge Clay formation, Jurassic

Location: Wyke Regis, Dorset, UK

Size (picture scale cube=1cm): 116 x 127 x 20mm (4.57 x 5 x 0.79 inches)

 

Gryphea is a species of Jurassic oyster, an extinct marine bivalve mollusc in the family Gryphaeidae. This fossil oyster is frequently found in abundance in the localities where it occurs

 

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: FP9701 Category:

Description

A

For sale is a genuine fossil specimen of Deltoideum delta, an extinct species of oyster from the Jurassic period, specifically the Kimmeridge Clay Formation (~157 to 152 million years ago). This fossil was discovered at Wyke Regis, Dorset, UK, a site known for its rich fossil beds and exceptional preservation of Jurassic marine life.

Deltoideum delta is closely related to the more commonly known Gryphaea genus, also called “devil’s toenails” due to their curved and gnarled shape. These bivalves lived on the seafloor in warm, shallow Jurassic seas, attaching themselves to firm substrates and filtering plankton from the water column.

Fossils from the Kimmeridge Clay Formation represent a time when the region now known as southern England was submerged beneath a tropical sea. The mud-rich sediments deposited in these conditions provided excellent preservation for marine organisms, making this formation one of the most important geological sequences for Jurassic fossils in the UK.

This specimen shows excellent preservation of the classic curved, ribbed shell typical of Jurassic oysters. It has been carefully hand-selected for its quality and completeness, and professionally photographed.

Key Details:

  • Species: Deltoideum delta (extinct oyster)
  • Fossil Type: Bivalve shell fossil
  • Geological Period: Upper Jurassic (~157–152 million years ago)
  • Formation: Kimmeridge Clay Formation
  • Location: Wyke Regis, Dorset, UK
  • Condition: Naturally preserved, carefully selected for clarity and structure
  • Authenticity: 100% genuine fossil, supplied with a Certificate of Authenticity
  • Photo: You will receive the exact specimen shown
  • Scale: Size shown using a 1cm scale cube in the photo

Additional Information:

  • Colours may vary depending on lighting and screen calibration.
  • Once sold, the listing will be updated with a new specimen and fresh photos.
  • Measurements are approximate due to natural irregularity in shape.

Whether you’re a fossil collector, educator, or geology enthusiast, this Deltoideum delta specimen is a beautiful and scientifically significant addition to any collection.

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

Fast & Secure Shipping – Carefully packed to ensure safe arrival.

Add a real piece of Jurassic seafloor life to your fossil collection – own this Deltoideum delta fossil oyster from the Kimmeridge Clay of Dorset today.

 

Additional information

Era

Jurassic
Origin

United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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