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.

FREE UK DELIVERY - LAST XMAS ORDERS 22ND DEC

SALE 10%
RARE: Trionyx Fossil Turtle Ulna – Bracklesham Beds, Eocene, Bracklesham Bay Sussex UK
RARE: Trionyx Fossil Turtle Ulna – Bracklesham Beds, Eocene, Bracklesham Bay Sussex UK - Image 2

RARE: Trionyx Fossil Turtle Ulna – Bracklesham Beds, Eocene, Bracklesham Bay Sussex UK

Original price was: £120.00.Current price is: £108.00.

This listing offers a rare fossil ulna (forelimb bone) from a turtle of the genus Trionyx, collected from the Bracklesham Beds at Bracklesham Bay, Sussex, United Kingdom. Dating to the Eocene Epoch, this specimen represents part of the limb structure of a soft-shelled turtle, offering a fascinating glimpse into the marine and coastal ecosystems of southern England over 40 million years ago.

Fossil Type:

  • Specimen: Turtle Forelimb Bone – Ulna
  • Genus: Trionyx
  • Part of the limb articulation of a soft-shelled turtle (Family Trionychidae)

Geological Context:

  • Period: Paleogene
  • Epoch: Eocene
  • Stage: Lutetian (~47.8 to 41.3 million years ago)
  • Formation: Bracklesham Beds (part of the Bracklesham Group)
  • Depositional Environment: Shallow marine to coastal estuarine. These beds were laid down in warm subtropical waters with rich biodiversity, capturing both terrestrial and marine vertebrate fossils.

Morphological Features:

  • Elongated ulna with characteristic curvature, consistent with Trionychid turtles
  • Dense, fossilised bone with smoothed cortical surface and mineralised preservation typical of Bracklesham material
  • Colour ranges from brown to grey with natural patina, shaped by burial conditions in marine clay and sand

Scientific Importance:

  • Trionyx represents a lineage of soft-shelled turtles still found today in Asia, Africa, and North America. Fossils from the UK are rare and of high scientific and collector value
  • Specimens like this contribute to our understanding of Eocene chelonian diversity and the palaeoenvironment of Britain’s coastal systems during the Paleogene

Locality Information:

  • Bracklesham Bay, Sussex, UK – one of Britain’s most important fossil sites, known for its Eocene marine fauna including sharks, rays, turtles, crocodiles, and fish

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and are accompanied by a Certificate of Authenticity. The photographs show the actual fossil you will receive. Full sizing can be viewed in the image provided, with the scale cube = 1cm.

This is a truly rare fossilised limb bone from a soft-shelled turtle that lived in ancient subtropical seas. A premium collector’s piece for fossil enthusiasts, reptile specialists, and palaeontologists alike.

Own a rare piece of Britain’s Eocene natural history—an authentic limb bone of Trionyx from over 40 million years ago.

(Actual as seen)

Only 1 left in stock

SKU: UF3441 Category:

Description

This listing offers a rare fossil ulna (forelimb bone) from a turtle of the genus Trionyx, collected from the Bracklesham Beds at Bracklesham Bay, Sussex, United Kingdom. Dating to the Eocene Epoch, this specimen represents part of the limb structure of a soft-shelled turtle, offering a fascinating glimpse into the marine and coastal ecosystems of southern England over 40 million years ago.

Fossil Type:

  • Specimen: Turtle Forelimb Bone – Ulna
  • Genus: Trionyx
  • Part of the limb articulation of a soft-shelled turtle (Family Trionychidae)

Geological Context:

  • Period: Paleogene
  • Epoch: Eocene
  • Stage: Lutetian (~47.8 to 41.3 million years ago)
  • Formation: Bracklesham Beds (part of the Bracklesham Group)
  • Depositional Environment: Shallow marine to coastal estuarine. These beds were laid down in warm subtropical waters with rich biodiversity, capturing both terrestrial and marine vertebrate fossils.

Morphological Features:

  • Elongated ulna with characteristic curvature, consistent with Trionychid turtles
  • Dense, fossilised bone with smoothed cortical surface and mineralised preservation typical of Bracklesham material
  • Colour ranges from brown to grey with natural patina, shaped by burial conditions in marine clay and sand

Scientific Importance:

  • Trionyx represents a lineage of soft-shelled turtles still found today in Asia, Africa, and North America. Fossils from the UK are rare and of high scientific and collector value
  • Specimens like this contribute to our understanding of Eocene chelonian diversity and the palaeoenvironment of Britain’s coastal systems during the Paleogene

Locality Information:

  • Bracklesham Bay, Sussex, UK – one of Britain’s most important fossil sites, known for its Eocene marine fauna including sharks, rays, turtles, crocodiles, and fish

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and are accompanied by a Certificate of Authenticity. The photographs show the actual fossil you will receive. Full sizing can be viewed in the image provided, with the scale cube = 1cm.

This is a truly rare fossilised limb bone from a soft-shelled turtle that lived in ancient subtropical seas. A premium collector’s piece for fossil enthusiasts, reptile specialists, and palaeontologists alike.

Own a rare piece of Britain’s Eocene natural history—an authentic limb bone of Trionyx from over 40 million years ago.

Additional information

Era

Eocene
Origin

United Kingdom

Eocene Information

The Eocene Period (56–33.9 million years ago) was a time of warm global temperatures and the rapid evolution of mammals following the extinction of the dinosaurs. The climate was hot and humid, with lush rainforests covering much of the planet, even near the poles. Mammals diversified into new ecological roles, with early primates, whales (like Basilosaurus), large herbivores, and carnivores emerging. Birds and reptiles also thrived, and the first grasses began spreading, setting the stage for later grassland ecosystems. By the late Eocene, the Earth’s climate cooled significantly, leading to the formation of the first Antarctic ice sheets and the eventual transition to the drier, cooler Oligocene Period.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Related products