#fossil coprolite bed

[uk-fossils]

Rare Fossil Reptile Bone in Coprolite Bed Block – Aust Cliff, Upper Triassic UK, Penarth Group, Westbury Formation

Discover a genuine piece of deep-time history with this fossil reptile bone embedded in a block from the famous fish, reptile, and coprolite bed at Aust Cliff, Bristol. This exceptional specimen was recovered from the Westbury Formation of the Penarth Group, dating back to the Upper Triassic Period (~208-201 million years ago). It originates from one of the UK’s most iconic fossil sites, renowned for preserving an extraordinary mix of vertebrate remains in a rich depositional setting.

Your specimen was discovered on 07 April 2025 by our own expert field collectors, Alister and Alison, and meticulously cleaned, prepped, and preserved by Alison. The actual fossil you receive is the one shown in the photos, clearly scaled with a 1cm cube for accurate size reference.

This reptile bone likely belonged to one of the early marine or semi-aquatic reptiles known from the site, such as phytosaurs or early archosaurs, which thrived in estuarine and nearshore environments. The Westbury Formation was deposited in a low-energy marine lagoonal or marginal marine setting, perfect for fossil preservation.

Geological & Palaeontological Information:

Species: Indeterminate Reptilia (likely Phytosaur or similar reptile)

Fossil Type: Bone (vertebrate remains)

Location: Aust Cliff, Bristol, England

Stratigraphy:

Formation: Westbury Formation

Group: Penarth Group

Stage: Upper Triassic (Rhaetian)

Depositional Environment: Shallow marine lagoonal to marginal marine

Notable Site Facts: Aust Cliff is a classic British palaeontological site, internationally famous for its diverse vertebrate fossils including fish, reptiles, and coprolites within a condensed fossil bed at the top of the Westbury Formation.

This fossil offers a rare opportunity to own a direct connection to the late Triassic world, just before the rise of the dinosaurs in the Jurassic. Perfect for collectors, educators, or anyone with a passion for ancient life.

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

Scale cube = 1cm. Please see the photo for full sizing.

Add this well-preserved and scientifically important specimen to your collection today – a snapshot of prehistoric life from a globally significant geological formation.

[venicepearl]

Mary Anning (21 May 1799 – 9 March 1847) was an English fossil collector, dealer, and palaeontologist. She became known internationally for her discoveries in Jurassic marine fossil beds in the cliffs along the English Channel at Lyme Regis in the county of Dorset, Southwest England. Anning's findings contributed to changes in scientific thinking about prehistoric life and the history of the Earth.

Anning searched for fossils in the area's Blue Lias and Charmouth Mudstone cliffs, particularly during the winter months when landslides exposed new fossils that had to be collected quickly before they were lost to the sea. Her discoveries included the first correctly identified ichthyosaur skeleton when she was twelve years old; the first two nearly complete plesiosaur skeletons; the first pterosaur skeleton located outside Germany; and fish fossils. Her observations played a key role in the discovery that coprolites, known as bezoar stones at the time, were fossilised faeces, and she also discovered that belemnite fossils contained fossilised ink sacs like those of modern cephalopods.

Anning struggled financially for much of her life. As a woman, she was not eligible to join the Geological Society of London, and she did not always receive full credit for her scientific contributions. However, her friend, geologist Henry De la Beche, who painted Duria Antiquior, the first widely circulated pictorial representation of a scene from prehistoric life derived from fossil reconstructions, based it largely on fossils Anning had found and sold prints of it for her benefit.

Anning became well known in geological circles in Britain, Europe, and America, and was consulted on issues of anatomy as well as fossil collecting. The only scientific writing of hers published in her lifetime appeared in the Magazine of Natural History in 1839, an extract from a letter that Anning had written to the magazine's editor questioning one of its claims. After her death in 1847, Anning's unusual life story attracted increasing interest.

[uk-fossils]

Rare Fossil Reptile Bone in Coprolite Bed Block – Aust Cliff, Upper Triassic UK, Penarth Group, Westbury Formation

Discover a genuine piece of deep-time history with this fossil reptile bone embedded in a block from the famous fish, reptile, and coprolite bed at Aust Cliff, Bristol. This exceptional specimen was recovered from the Westbury Formation of the Penarth Group, dating back to the Upper Triassic Period (~208-201 million years ago). It originates from one of the UK’s most iconic fossil sites, renowned for preserving an extraordinary mix of vertebrate remains in a rich depositional setting.

Your specimen was discovered on 07 April 2025 by our own expert field collectors, Alister and Alison, and meticulously cleaned, prepped, and preserved by Alison. The actual fossil you receive is the one shown in the photos, clearly scaled with a 1cm cube for accurate size reference.

This reptile bone likely belonged to one of the early marine or semi-aquatic reptiles known from the site, such as phytosaurs or early archosaurs, which thrived in estuarine and nearshore environments. The Westbury Formation was deposited in a low-energy marine lagoonal or marginal marine setting, perfect for fossil preservation.

Geological & Palaeontological Information:

Species: Indeterminate Reptilia (likely Phytosaur or similar reptile)

Fossil Type: Bone (vertebrate remains)

Location: Aust Cliff, Bristol, England

Stratigraphy:

Formation: Westbury Formation

Group: Penarth Group

Stage: Upper Triassic (Rhaetian)

Depositional Environment: Shallow marine lagoonal to marginal marine

Notable Site Facts: Aust Cliff is a classic British palaeontological site, internationally famous for its diverse vertebrate fossils including fish, reptiles, and coprolites within a condensed fossil bed at the top of the Westbury Formation.

This fossil offers a rare opportunity to own a direct connection to the late Triassic world, just before the rise of the dinosaurs in the Jurassic. Perfect for collectors, educators, or anyone with a passion for ancient life.

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

Scale cube = 1cm. Please see the photo for full sizing.

Add this well-preserved and scientifically important specimen to your collection today – a snapshot of prehistoric life from a globally significant geological formation.

[uk-fossils]

Ceratodus Fossil Coprolites – Upper Triassic – Aust Cliff, Westbury Formation, UK – Authentic Specimen

Ceratodus Coprolite Fossils in Matrix – Upper Triassic – Aust Cliff, Westbury Formation, Penarth Group, Bristol, UK

This listing features a genuine fossil coprolite specimen, attributed to the prehistoric lungfish Ceratodus, embedded in original matrix from the famous fish, reptile, and coprolite bed at Aust Cliff, near Bristol. This site is part of the Westbury Formation, a classic Upper Triassic locality in the UK known for its rich vertebrate fossil content.

Scientific & Geological Details:

Location: Aust Cliff, Bristol, England, UK

Formation: Westbury Formation

Group: Penarth Group

Age: Upper Triassic (~205–210 million years ago)

Depositional Environment: Lagoonal to marginal marine with periodic anoxic conditions—ideal for preservation of vertebrate remains and trace fossils

Fossil Zone: Part of the Rhaetian Stage, marking the transition to the Jurassic

Notable Species: Ceratodus was a genus of lungfish, a group that still survives today in limited forms. These fish were adapted to low-oxygen waters and left behind spiral or pellet-like faecal fossils.

Morphological Features of the Coprolite:

Typically cylindrical or spiral in form

Surface texture may show subtle spiral markings (if not abraded)

Matrix may contain associated microvertebrate remains including fish scales or bone fragments

Represents trace fossil evidence (not the animal itself but its biological activity)

Specimen Information:

Discovery Date: 07 April 2025

Collected By: UKGE team members Alister and Alison

Preparation: Expertly cleaned and stabilised by Alison

Scale Reference: Shown alongside a 1cm cube for exact sizing – see photographs for dimensions and angles

What You See Is What You Get: The photos show the exact item you will receive

Authenticity: Supplied with a Certificate of Authenticity. All our fossils are 100% genuine and responsibly sourced.

Educational and Collectible Value:

This coprolite offers a fascinating window into ancient biological processes and Triassic ecosystems. It's a perfect specimen for collectors, educators, students, and anyone interested in paleobiology or the evolution of vertebrate life. Trace fossils like this are invaluable for reconstructing diet and environmental conditions of ancient species.

[irregodless]

#again?

one time he bullied me for holding a watering can outside in the rain. hard.

another time Sherbert here sent me a letter with what he claimed was a piece of candy that fell behind his bed but was in actuality, coprolite, or fossilized poop

hes a menance to society and more importantly my island and the secret underground city i constructed where i can finally be mayor again

hes doing it again

[uk-fossils]

Fossil Reptile Coprolite – Upper Triassic – Aust Cliff, Westbury Formation, Bristol UK

Fossil Reptile Coprolite in Matrix – Upper Triassic – Aust Cliff, Westbury Formation, Bristol, UK

This authentic specimen is a fossilised reptile coprolite, preserved in situ within a matrix from the iconic fish, reptile and coprolite bed at Aust Cliff, Bristol. The bed belongs to the Westbury Formation, part of the Penarth Group, and dates back to the Upper Triassic period, approximately 205–210 million years ago.

Scientific and Geological Context:

Location: Aust Cliff, Bristol, UK

Formation: Westbury Formation

Group: Penarth Group

Geological Period: Upper Triassic

Depositional Environment: Anoxic, low-energy estuarine/coastal lagoon – ideal for fossil preservation

Lithology: Laminated dark mudstones with concentrated fossil bone, tooth, and coprolite deposits

Palaeoecology: A rich snapshot of Upper Triassic coastal life, including reptiles, fishes, and their trace fossils

Fossil Significance & Morphology:

Coprolites are trace fossils that provide invaluable information about the diets and digestive processes of ancient organisms. This specimen is likely from a carnivorous reptile, evidenced by embedded bone or scale fragments.

Morphology Features:

Elongated, rounded coprolite with clear concentric growth or digestive textures

Possible inclusions of crushed bone or fish remains visible

Notable Value: Such coprolites are used in scientific studies to reconstruct Triassic food webs, and specimens from Aust Cliff are among the best-preserved from the UK

Specimen Details:

Discovered by: Our own field team – Alister and Alison – on 07 April 2025

Cleaned, prepped and treated by: Alison

Scale Reference: 1cm cube shown in photo; see image gallery for full size and detail

Authenticity Guaranteed: Comes with our Certificate of Authenticity – all our fossils are 100% genuine

Actual Specimen: What you see is exactly what you’ll receive – no substitutes

Ideal For:

Collectors of trace fossils, educators, palaeontology enthusiasts, and those interested in the dietary history of reptiles in the Late Triassic ecosystems. A fascinating and tangible link to prehistoric life, ideal for display or educational use.

[uk-fossils]

Fossil Reptile Bones & Coprolite – Upper Triassic – Aust Cliff, Westbury Formation, Bristol UK

Fossil Reptile Bones and Coprolite in Matrix – Upper Triassic – Aust Cliff, Westbury Formation, Bristol, UK

This exceptional block contains genuine reptile bone fragments and an accompanying coprolite (fossilised faeces), preserved together in a matrix from the world-famous fish, reptile, and coprolite bed at Aust Cliff, Bristol. This geological unit, known as the Westbury Formation, is part of the Penarth Group and dates back to the Upper Triassic Period (around 205–210 million years ago).

Scientific and Geological Context:

Location: Aust Cliff, near Bristol, UK

Formation: Westbury Formation

Group: Penarth Group

Geological Period: Upper Triassic

Depositional Environment: Coastal lagoon/estuarine system subject to episodic flooding and anoxic conditions, perfect for preservation of organic material

Lithology: Dark laminated mudstones and siltstones with fossil-rich horizons

Palaeoecology: Rich with vertebrate remains including fish, early marine reptiles (e.g. placodonts and ichthyosaurs), and evidence of terrestrial vertebrate activity via coprolites and bone beds

Fossil Features and Significance:

The coprolite is thought to originate from a carnivorous vertebrate and often contains inclusions such as crushed bone fragments, giving insights into the diet of Triassic predators. The reptile bones in this block may represent fragments from marine or marginal marine reptiles that inhabited or were washed into the depositional basin.

Morphology Highlights:

Long, cylindrical coprolite with preserved texture and mineral replacement

Bone fragments exhibit porous internal structure typical of vertebrate remains

Notable Use: Coprolites from this bed are significant for palaeoecological reconstructions and are used to study trophic chains in Late Triassic environments

Specimen Details:

Discovered by: Our own team – Alister and Alison – on 07 April 2025

Cleaned, prepped and treated by: Alison

Scale Reference: Cube in image = 1cm; full size detailed in photographs

Authenticity: Supplied with a Certificate of Authenticity – we guarantee all our specimens are 100% genuine

Photographed Specimen: What you see is exactly what you get – carefully chosen, clearly shown

Why This Specimen?

This is an ideal piece for collectors, educators, and anyone with an interest in prehistoric life. With both reptile bone and coprolite in situ from a stratigraphically and scientifically important UK fossil bed, it’s a rare and insightful snapshot of Triassic life.

[uk-fossils]

RARE Fossil Reptile Bones and Coprolite – Aust Cliff UK – Upper Triassic Westbury Formation

RARE Fossil Reptile Bones and Coprolite – Westbury Formation, Aust Cliff, Bristol, UK – Upper Triassic

This is a carefully selected and authentic fossil slab containing both fossilised reptile bones and coprolite (fossilised faeces), recovered from the famous fish, reptile, and coprolite bed at Aust Cliff, Bristol. This site is one of the most scientifically significant Upper Triassic fossil localities in the UK.

Formation and Age:

Location: Aust Cliff, Bristol, UK

Geological Unit: Westbury Formation, Penarth Group

Stratigraphy: Upper Triassic (~208–201 million years ago)

Depositional Environment: Shallow marine to lagoonal – ideal for fossil preservation

Fossil Content and Scientific Context:

The coprolite is likely from Ceratodus, an extinct genus of lungfish, while the reptile bones may belong to small Triassic marine or semi-aquatic reptiles, such as early archosaurs. Fossils from this bed often preserve dietary and environmental data, making them important for scientific and educational purposes.

This block offers a rare opportunity to own multiple fossil types in one piece, showcasing the diverse ecosystem that existed in the Late Triassic coastal regions of Britain.

Features and Morphology:

Reptile bones typically show dark mineralisation with fine surface detail

Coprolite may exhibit spiral or segmented morphology consistent with lungfish

Contrasting matrix and fossil material provide a striking visual display

Authenticity and Preparation:

Discovered by our own field team (Alister and Alison) on 07 April 2025

Cleaned, prepped and treated by Alison to ensure stability and clarity

All fossils are 100% genuine and come with a Certificate of Authenticity

Scale cube = 1cm. Please refer to photos for full sizing

The specimen shown in the photograph is the exact item you will receive

Why Buy From Us:

We specialise in high-quality, scientifically interesting fossil specimens that are responsibly sourced and professionally prepared. Perfect for collectors, educators, or anyone looking to own a genuine piece of natural history.

[uk-fossils]

RARE Fossil Reptile Bone - Aust Cliff UK - Westbury Formation - Upper Triassic - Genuine Specimen with COA

RARE Fossil Reptile Bone – Westbury Formation, Aust Cliff, Upper Triassic, UK

This listing is for a genuine fossilised reptile bone preserved within a natural matrix from the famous fish, reptile, and coprolite bed of Aust Cliff, Bristol, UK. This rare and historically significant site is part of the Westbury Formation within the Penarth Group, dating to the Upper Triassic period (approx. 208–201 million years ago).

Your specimen was carefully discovered by our own team members Alister and Alison on 07 April 2025, and has been professionally cleaned, prepped, and treated by Alison to ensure both preservation and presentation quality.

The Westbury Formation at Aust Cliff represents a transitional coastal lagoonal to marginal marine depositional environment. Fossils found here are often associated with the Rhaetian Stage of the Upper Triassic, making them invaluable for understanding the pre-Jurassic marine and nearshore fauna of the UK.

The bone is likely to be from a marine or semi-aquatic reptile, with known species from this bed including Ichthyosaurs, Plesiosaurs, and primitive Crocodyliforms. While exact taxonomic assignment is not possible without further scientific analysis, the morphology is consistent with vertebrate skeletal remains from these groups.

Geological Formation: Westbury Formation

Group: Penarth Group

Stage: Upper Triassic (Rhaetian)

Location: Aust Cliff, Bristol, England, UK

Depositional Environment: Shallow marine to marginal lagoonal

Notable Features: Preserved in original matrix with other fossil material potentially visible

Specimen Type: Reptile bone fossil in matrix

Each fossil we offer is 100% genuine and comes with a Certificate of Authenticity. The fossil in the photograph is the exact one you will receive.

Please refer to the photo for full sizing details — the included scale cube is 1cm for reference.

Perfect for collectors, educational use, or display, this is a striking and authentic piece of British palaeontological history.

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

[uk-fossils]

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

This listing features a fossil reptile bone embedded in a matrix block from the famous fish, reptile, and coprolite bed at Aust Cliff, located near Bristol, UK. This vertebrate specimen comes from the Westbury Formation, part of the Penarth Group, and is dated to the Upper Triassic Period (Rhaetian Stage, approximately 208–201 million years ago).

This specific fossil was discovered by our team members Alister and Alison on 07 April 2025, and has been carefully cleaned, prepped, and treated by Alison. It comes with a Certificate of Authenticity, and the photo displays the exact piece you will receive.

Geological and Palaeontological Context:

The Westbury Formation was deposited during a time of significant marine transgression and features a shallow marine to lagoonal depositional environment. Aust Cliff is one of the most celebrated Late Triassic fossil localities in the UK, known for yielding abundant and diverse marine vertebrate remains, including fish, marine reptiles, and coprolites.

Reptile bones found in this bed may belong to Placodonts, early Plesiosaurs, or other Triassic marine reptiles. Complete identification from fragmentary material is often limited, but such fossils still hold considerable scientific and educational value.

Morphology Features:

Dense, robust fossilised bone fragment

May show surface texture such as striations or curvature

Preserved in laminated dark grey micaceous mudstone

Could represent part of a limb, rib, or vertebral structure

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 / lagoonal

Discovered By: Alister & Alison (UKGE Team)

Date of Discovery: 07 April 2025

This is a well-preserved and scientifically significant fossil from a globally recognised British Triassic vertebrate site. It makes an excellent addition for fossil collectors, educators, or palaeontology enthusiasts interested in the evolution of marine reptiles.

Scale cube = 1cm. Please see photo for full sizing and preservation detail.

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

[uk-fossils]

Fossil Small Reptile Vertebra in Block Upper Triassic Westbury Formation Aust Cliff Bristol UK Authentic Specimen

This listing features a finely preserved small reptile vertebra fossil, embedded in matrix from the iconic fish, reptile, and coprolite bed at Aust Cliff, near Bristol, United Kingdom. This fossil was discovered in the Westbury Formation of the Penarth Group, dating to the Upper Triassic Period (Rhaetian Stage, ~208–201 million years ago).

Your specimen was discovered by our own team members Alister and Alison on 07 April 2025, and has been carefully cleaned, prepped, and treated by Alison. It is the actual piece shown in the photograph and comes with a Certificate of Authenticity.

Geological and Palaeontological Context:

The Westbury Formation represents a shallow marine to lagoonal depositional setting formed during a major transgressive phase at the close of the Triassic. Aust Cliff is one of the UK’s most productive fossil localities for vertebrate remains from this period, preserving a rich assemblage of marine reptiles, bony fish, and coprolites.

Reptile Vertebra Details:

This small vertebra likely belonged to a juvenile or small-bodied marine reptile, potentially a Placodont, early Plesiosaur, or a related group of Triassic marine reptiles.

Morphological Features:

Small, rounded to spool-shaped centrum

Surface detail may include articular facets, notochordal canal traces, or subtle ridging

Preserved in dark grey to black micaceous mudstone matrix

Occasionally found in association with fish scales or coprolitic fragments

Specimen Information:

Fossil Type: Small Reptile Vertebra in Matrix Block

Formation: Westbury Formation

Group: Penarth Group

Geological Stage: Rhaetian Stage, Upper Triassic

Location: Aust Cliff, Bristol, UK

Depositional Environment: Shallow marine / lagoonal

Discovered By: Alister & Alison (UKGE Team)

Date of Discovery: 07 April 2025

This is a unique and scientifically valuable specimen from one of Britain’s most famous fossil beds, ideal for collectors, educators, or enthusiasts of marine reptiles and Triassic vertebrates.

Scale cube = 1cm. Please see the photo for full sizing and preservation detail.

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

[uk-fossils]

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

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.

[uk-fossils]

Fossil Fish Tooth – Upper Triassic – Aust Cliff, Westbury Formation, Bristol UK – Genuine Specimen

Fossil Fish Tooth in Matrix – Upper Triassic – Aust Cliff, Westbury Formation, Penarth Group, Bristol, UK

This listing features an authentic fossil fish tooth preserved in matrix, originating from the iconic fossil-bearing bed at Aust Cliff, Bristol. This site is internationally recognised for its rich accumulation of fish, reptile, and coprolite remains from the Upper Triassic period, particularly within the Westbury Formation of the Penarth Group.

Geological & Scientific Context:

Locality: Aust Cliff, Bristol, UK

Stratigraphy: Westbury Formation, Penarth Group

Age: Upper Triassic (~205–210 million years ago)

Depositional Environment: A marginal marine estuarine or coastal lagoon setting with periodic anoxic conditions. These created ideal preservation conditions, capturing a moment in time from a biologically diverse late Triassic ecosystem.

Lithology: Laminated, organic-rich black mudstones with bone and tooth-rich concentrations

Fossil Description & Features:

The specimen displays a clearly defined fish tooth embedded within a natural matrix, offering a glimpse into the feeding anatomy of prehistoric fishes. Likely candidates for attribution include Saurichthys, Lepidotes, or Palaeoniscid fish—all of which are known from this formation.

Morphology:

Conical or lanceolate shape typical of piscivorous species

Smooth enamel surface, occasionally striated, with tapering to a fine point

Root occasionally visible, though often encased in matrix

Palaeontological Significance:

Teeth from this bed are essential in studying the evolution and dietary adaptations of early ray-finned fishes and predatory actinopterygians

The fossil record from Aust Cliff helps reconstruct the dynamics of Triassic vertebrate communities just before the major Jurassic radiation

Specimen Details:

Discovery Date: 07 April 2025

Discovered by: Our own field team members, Alister and Alison

Preparation & Treatment: Cleaned and stabilised by Alison

Scale Reference: Shown with 1cm cube – please refer to photographs for full sizing and angles

Authenticity: Comes with a Certificate of Authenticity – all of our fossils are 100% genuine and responsibly sourced

What You See Is What You Get: The specimen in the photos is the exact item you’ll receive

Ideal For:

Fossil collectors, educational purposes, museum displays, or anyone with a fascination for marine vertebrates of the prehistoric world. This specimen makes a superb addition to collections focused on Triassic ecosystems, vertebrate paleontology, or evolutionary biology.

[uk-fossils]

Fossil Fish Tooth – Upper Triassic – Aust Cliff, Westbury Formation, Bristol UK – Genuine Specimen

Fossil Fish Tooth in Matrix – Upper Triassic – Aust Cliff, Westbury Formation, Penarth Group, Bristol, UK

This listing features an authentic fossil fish tooth preserved in matrix, originating from the iconic fossil-bearing bed at Aust Cliff, Bristol. This site is internationally recognised for its rich accumulation of fish, reptile, and coprolite remains from the Upper Triassic period, particularly within the Westbury Formation of the Penarth Group.

Geological & Scientific Context:

Locality: Aust Cliff, Bristol, UK

Stratigraphy: Westbury Formation, Penarth Group

Age: Upper Triassic (~205–210 million years ago)

Depositional Environment: A marginal marine estuarine or coastal lagoon setting with periodic anoxic conditions. These created ideal preservation conditions, capturing a moment in time from a biologically diverse late Triassic ecosystem.

Lithology: Laminated, organic-rich black mudstones with bone and tooth-rich concentrations

Fossil Description & Features:

The specimen displays a clearly defined fish tooth embedded within a natural matrix, offering a glimpse into the feeding anatomy of prehistoric fishes. Likely candidates for attribution include Saurichthys, Lepidotes, or Palaeoniscid fish—all of which are known from this formation.

Morphology:

Conical or lanceolate shape typical of piscivorous species

Smooth enamel surface, occasionally striated, with tapering to a fine point

Root occasionally visible, though often encased in matrix

Palaeontological Significance:

Teeth from this bed are essential in studying the evolution and dietary adaptations of early ray-finned fishes and predatory actinopterygians

The fossil record from Aust Cliff helps reconstruct the dynamics of Triassic vertebrate communities just before the major Jurassic radiation

Specimen Details:

Discovery Date: 07 April 2025

Discovered by: Our own field team members, Alister and Alison

Preparation & Treatment: Cleaned and stabilised by Alison

Scale Reference: Shown with 1cm cube – please refer to photographs for full sizing and angles

Authenticity: Comes with a Certificate of Authenticity – all of our fossils are 100% genuine and responsibly sourced

What You See Is What You Get: The specimen in the photos is the exact item you’ll receive

Ideal For:

Fossil collectors, educational purposes, museum displays, or anyone with a fascination for marine vertebrates of the prehistoric world. This specimen makes a superb addition to collections focused on Triassic ecosystems, vertebrate paleontology, or evolutionary biology.

[uk-fossils]

RARE Fossil Fish Tooth – Westbury Formation, Aust Cliff, Bristol – Upper Triassic Coprolite Bed UK

This is a rare and authentic Fossil Fish Tooth preserved in a matrix block from the world-famous fish, reptile and coprolite bed at Aust Cliff, near Bristol, UK. It was discovered by our experienced fossil hunting team, Alister and Alison, on 07 April 2025, and has been expertly cleaned, prepared, and stabilised by Alison.

This fossil originates from the Westbury Formation, part of the Penarth Group, and dates to the Upper Triassic period (~205 million years ago). The Westbury Formation is especially well-known for its rich assemblage of vertebrate remains, including fish, marine reptiles, and the distinctive spiral coprolites (fossilised dung) attributed to large predatory fish like Ceratodus and Agkistracanthus.

Geological Details:

Formation: Westbury Formation

Group: Penarth Group

Age: Upper Triassic (Norian–Rhaetian)

Location: Aust Cliff, Bristol, UK

Depositional Environment: Marine shelf – low-energy anoxic conditions aiding preservation

Fossil Type & Preservation:

Fossil Type: Fish tooth

Condition: Well-preserved in natural matrix, shows diagnostic cuspate form

Associated Matrix: Often includes surrounding coprolite fragments and occasional reptile bone

Notable & Scientific Importance:

The Aust Cliff beds are one of the most studied vertebrate-bearing Triassic localities in Europe.

Fossils from here contribute to our understanding of prehistoric marine ecosystems and extinction/recovery events before the Jurassic.

Why Buy This Fossil?

100% Genuine Specimen – ethically sourced and prepared by UK-based specialists

Comes with a Certificate of Authenticity

You will receive the exact fossil shown in the photos

Ideal for collectors, educators, or anyone with an interest in Earth’s history

Please Note: Scale cube = 1cm. For full sizing and close-up views, please refer to the photograph.

Add this exceptional piece of Triassic history to your fossil collection today!

[uk-fossils]

Rare Agkistracanthus mitgelensis Fossil Fish Tooth in Matrix – Upper Triassic, Aust Cliff UK – Genuine Specimen

This is a rare Agkistracanthus mitgelensis fossil fish tooth preserved in matrix, collected from the famous fish, reptile, and coprolite bed at Aust Cliff, Bristol, England. This remarkable specimen comes from the Westbury Formation, part of the Penarth Group, dating to the Upper Triassic period (~209–201 million years ago).

Discovered on 07 April 2025 by our own team members Alister and Alison, the specimen has been carefully cleaned, prepped, and treated by Alison to ensure optimal preservation and presentation. The accompanying photo shows the exact specimen you will receive. A scale cube = 1cm is included for full sizing (see photo).

The Agkistracanthus mitgelensis is a rare genus of cartilaginous fish (likely related to the Holocephali or early Chimaeras), known primarily from teeth and occasional skeletal remains. The teeth are distinctive for their elongate, pointed shape and smooth enamel. Finds of this genus are important for understanding fish evolution across the Triassic–Jurassic boundary.

Geological Details:

Formation: Westbury Formation

Group: Penarth Group

Locality: Aust Cliff, Bristol, UK

Age: Upper Triassic (Rhaetian Stage)

Depositional Environment: Shallow marine to lagoonal conditions rich in vertebrate remains and coprolites

Taxonomy:

Genus: Agkistracanthus

Species: mitgelensis

Family: Uncertain (tentatively placed among basal Holocephali)

Order: Chimaeriformes (provisional)

Notable:

From the iconic Aust Cliff horizon, internationally known for its vertebrate fossils.

Rare taxon, seldom available on the open market.

Highly sought after by collectors and ideal for educational display.

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

This is a scientifically significant and visually appealing piece from a historic British fossil locality. A fantastic opportunity to acquire a genuine piece of prehistoric life with both collector and academic value.