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Fossil Reptile Bone in Block Upper Triassic Westbury Formation Aust Cliff Bristol UK Authentic Vertebrate Specimen

Fossil Reptile Bone in Block Upper Triassic Westbury Formation Aust Cliff Bristol UK Authentic Vertebrate Specimen

Original price was: £12.00.Current price is: £10.80.

This listing features an authentic fossil reptile bone, preserved in a block of matrix from the famous vertebrate-rich bed at Aust Cliff, near Bristol, United Kingdom. This fossil comes from the Westbury Formation, within the Penarth Group, and dates to the Upper Triassic Period (Rhaetian Stage, ~208–201 million years ago).

The specimen was discovered by UKGE team members Alister and Alison on 07 April 2025, and has been carefully cleaned, prepped, and treated by Alison. The exact fossil shown in the photo is the one you will receive and comes with a Certificate of Authenticity.

Geological Context:

The Westbury Formation at Aust Cliff represents a shallow marine to lagoonal depositional environment, laid down during a major marine transgression in the Late Triassic. This site is internationally known for its well-preserved vertebrate remains, including fish, marine reptiles, and abundant coprolites.

Reptile Bone Details:

While individual identification of isolated bone fragments can be challenging, the bone in this specimen likely belongs to a marine reptile such as a Placodont, Plesiosaur, or Ichthyosaur—all known from similar Triassic environments.

Morphological Features:

  • Dense, robust fossilised bone fragment
  • Preserved in laminated dark grey micaceous mudstone
  • May exhibit surface texture, curvature, or internal structure
  • Potential origin includes rib, limb, or jaw bone

This is a valuable and visually striking specimen from one of Britain’s most iconic Triassic fossil beds.

Specimen Information:

  • Fossil Type: Reptile Bone in Matrix Block
  • Geological Formation: Westbury Formation
  • Group: Penarth Group
  • Geological Stage: Rhaetian Stage, Upper Triassic
  • Location: Aust Cliff, Bristol, UK
  • Depositional Environment: Shallow marine to lagoonal
  • Discovered By: Alister & Alison (UKGE Team)
  • Date of Discovery: 07 April 2025

Scale cube = 1cm. Please refer to the photograph for exact sizing and details.

This fossil is an exceptional addition for collectors of marine reptile material, Triassic vertebrates, or British palaeontology.

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

(Actual as seen)

Only 1 left in stock

SKU: CS8003 Category:

Description

This listing features an authentic fossil reptile bone, preserved in a block of matrix from the famous vertebrate-rich bed at Aust Cliff, near Bristol, United Kingdom. This fossil comes from the Westbury Formation, within the Penarth Group, and dates to the Upper Triassic Period (Rhaetian Stage, ~208–201 million years ago).

The specimen was discovered by UKGE team members Alister and Alison on 07 April 2025, and has been carefully cleaned, prepped, and treated by Alison. The exact fossil shown in the photo is the one you will receive and comes with a Certificate of Authenticity.

Geological Context:

The Westbury Formation at Aust Cliff represents a shallow marine to lagoonal depositional environment, laid down during a major marine transgression in the Late Triassic. This site is internationally known for its well-preserved vertebrate remains, including fish, marine reptiles, and abundant coprolites.

Reptile Bone Details:

While individual identification of isolated bone fragments can be challenging, the bone in this specimen likely belongs to a marine reptile such as a Placodont, Plesiosaur, or Ichthyosaur—all known from similar Triassic environments.

Morphological Features:

  • Dense, robust fossilised bone fragment
  • Preserved in laminated dark grey micaceous mudstone
  • May exhibit surface texture, curvature, or internal structure
  • Potential origin includes rib, limb, or jaw bone

This is a valuable and visually striking specimen from one of Britain’s most iconic Triassic fossil beds.

Specimen Information:

  • Fossil Type: Reptile Bone in Matrix Block
  • Geological Formation: Westbury Formation
  • Group: Penarth Group
  • Geological Stage: Rhaetian Stage, Upper Triassic
  • Location: Aust Cliff, Bristol, UK
  • Depositional Environment: Shallow marine to lagoonal
  • Discovered By: Alister & Alison (UKGE Team)
  • Date of Discovery: 07 April 2025

Scale cube = 1cm. Please refer to the photograph for exact sizing and details.

This fossil is an exceptional addition for collectors of marine reptile material, Triassic vertebrates, or British palaeontology.

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

Additional information

Era

Triassic
Origin

United Kingdom

Triassic Information

The Triassic Period (252–201 million years ago) marked the beginning of the Mesozoic Era, following the Permian-Triassic mass extinction, the most severe extinction event in Earth's history. The climate was hot and dry, with vast deserts and little polar ice. Life slowly recovered, leading to the rise of the first dinosaurs, pterosaurs (flying reptiles), and early mammals. Reptiles, including large archosaurs (ancestors of crocodiles and dinosaurs), dominated both land and sea. In the oceans, ichthyosaurs and plesiosaurs thrived alongside ammonites and early coral reefs. The first true conifers and ginkgo trees spread across the land. The period ended with another mass extinction, paving the way for the Jurassic and the golden age of dinosaurs.

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