#ukfossils

[uk-fossils]

Giant cut & polished ammonite single fossil ammonoids - impressive specimen

Scale cube=1cm: Full sizing please see photo

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

Name: Ammonite

Species: Cleoniceras

Age: Cretaceous Period

Location Found: Madagascar

Ammonites are one of the most recognisable fossils around the world due to their familiar spiral shape. They were marine based, present between 240 - 65 million years ago. They are the most  popular fossil for collections and found all over the world. Some ammonites could reach up to 2 metres in size. Children love collecting them, and places like Lyme Regis in Dorset becomes busy during the summer months with many people trying their luck at finding impressions in the rocks of their own ammonites.

These stunningly beautiful ammonites have been sliced in half and polished to expose the amazing colourful chambers inside the fossil.

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 so this listing will change after you purchase. The scale cube in the photo is 1cm to give a visual size.

Origin : Madagascar.

Era : Cretaceous

Unique : (Actual as seen).

[uk-fossils]

Giant cut & polished ammonite single fossil ammonoids - impressive specimen

Scale cube=1cm: Full sizing please see photo

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

Name: Ammonite

Species: Cleoniceras

Age: Cretaceous Period

Location Found: Madagascar

Ammonites are one of the most recognisable fossils around the world due to their familiar spiral shape. They were marine based, present between 240 - 65 million years ago. They are the most  popular fossil for collections and found all over the world. Some ammonites could reach up to 2 metres in size. Children love collecting them, and places like Lyme Regis in Dorset becomes busy during the summer months with many people trying their luck at finding impressions in the rocks of their own ammonites.

These stunningly beautiful ammonites have been sliced in half and polished to expose the amazing colourful chambers inside the fossil.

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 so this listing will change after you purchase. The scale cube in the photo is 1cm to give a visual size.

Origin : Madagascar.

Era : Cretaceous

Unique : (Actual as seen).

[uk-fossils]

Giant cut & polished ammonite single fossil

Scale cube=1cm: Full sizing please see photo.

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

Name: Ammonite

Species: Cleoniceras

Age: Cretaceous Period

Location Found: Madagascar

Ammonites are one of the most recognisable fossils around the world due to their familiar spiral shape. They were marine based, present between 240 - 65 million years ago. They are the most  popular fossil for collections and found all over the world. Some ammonites could reach up to 2 metres in size. Children love collecting them, and places like Lyme Regis in Dorset becomes busy during the summer months with many people trying their luck at finding impressions in the rocks of their own ammonites.

These stunningly beautiful ammonites have been sliced in half and polished to expose the amazing colourful chambers inside the fossil.

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 so this listing will change after you purchase. The scale cube in the photo is 1cm to give a visual size.

Origin : Madagascar.

Era : Cretaceous.

Unique : (Actual as seen).

[uk-fossils]

Haugia variabilis Somerset Fossil Ammonite – Jurassic Beacon Limestone – Ilminster UK – Genuine UKFossils Specimen

Haugia variabilis Fossil Ammonite

Formation: Beacon Limestone

Age: Jurassic Period (Toarcian Stage)

Location Found: Ilminster, Somerset, UK

Discovery Date: 13 May 2024

Discovered & Prepared by: Alister (discovery) & Alison (cleaned, prepped, and treated)

Scale Cube = 1cm – Full sizing shown in photo

Includes Certificate of Authenticity

Unearth a stunning piece of British palaeontological history with this Haugia variabilis ammonite fossil from the renowned Beacon Limestone Formation of Ilminster, Somerset. Dating back to the Toarcian Stage of the Lower Jurassic, approximately 180 million years ago, this extinct cephalopod is a member of the Hildoceratidae family, known for its compressed, involute shell and strong ribbing—a distinctive marker of its genus.

This beautifully preserved specimen was discovered on 13 May 2024 by our dedicated fossil team members Alister and Alison, and has been professionally cleaned, prepped, and treated by Alison to reveal its exquisite natural detail.

The genus Haugia is named in honour of French palaeontologist Édouard Haug, and is a prized find among Jurassic ammonite collectors due to its defined ribbing and rarity in some localities. This particular specimen offers a superb example of the species' shell morphology and preservation, making it an excellent addition to any fossil collection.

Ideal for:

Collectors of UK Jurassic fossils

Museum displays

Educational collections

Natural history gifts

Enthusiasts of ammonites and marine life

ACTUAL AS SEEN:

The photograph provided shows the exact specimen you will receive. This fossil has been carefully hand-selected and professionally photographed. Measurements are as accurate as possible, but please note that minor deviations may occur due to natural shape. Colour and tone may vary slightly depending on lighting conditions and device screens.

Our Guarantee:

All of our fossils are 100% genuine specimens and include a Certificate of Authenticity. We do not sell replicas or synthetic materials—only authentic, responsibly sourced fossils, cleaned and prepared by our in-house experts.

[uk-fossils]

RARE Fossil Belemnite – PACHYTEUTHIS ABBREVIATA, Oxfordian, Jurassic, S. Marston, UK – Genuine Specimen with COA

This is a rare PACHYTEUTHIS ABBREVIATA fossil belemnite from the Oxfordian stage of the Late Jurassic period, discovered in S. Marston, United Kingdom. Belemnites were extinct marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, they had an internal shell known as a guard, which fossilised over millions of years, leaving behind the well-preserved bullet-shaped remains commonly found in Jurassic marine deposits.

Geological Information:

Formation: Oxfordian Marine Deposits

Stage: Oxfordian (~157-163 million years old)

Location: S. Marston, United Kingdom

Depositional Environment: Shallow marine limestone and mudstone sediments

Fossil Characteristics:

Short, thick guard with a slightly tapered shape

Well-preserved with fine structural details

Distinctive species from the Late Jurassic

Rarely available UK belemnite fossil

Key Features:

Authentic Pachyteuthis abbreviatus fossil belemnite

Distinct bullet-shaped rostrum with excellent preservation

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.

[uk-fossils]

RARE Fossil Belemnite – BELEMNITELLA ELONGATA, Pliensbachian, Jurassic, Blockley, UK – Genuine Specimen with COA

This is a rare BELEMNITELLA ELONGATA fossil belemnite from the Pliensbachian stage of the Early Jurassic period, discovered in Blockley, United Kingdom. Belemnites were extinct marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, they had an internal shell called a guard, which fossilised over millions of years, leaving behind well-preserved, bullet-shaped remains that are commonly found in Jurassic marine deposits.

Geological Information:

Formation: Marlstone Rock Formation

Stage: Pliensbachian (~190-182 million years old)

Location: Blockley, Gloucestershire, UK

Depositional Environment: Shallow marine ironstone and mudstone deposits

Fossil Characteristics:

Elongated, tapering guard with smooth surface details

Preserved in iron-rich Jurassic limestone

Excellent example of Early Jurassic cephalopod evolution

Highly sought-after belemnite species from the UK

Key Features:

Authentic BELEMNITELLA ELONGATA fossil belemnite

Distinctive bullet-shaped rostrum with natural features

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.

[uk-fossils]

4" RARE Fossil Belemnite – MEGATEUTHIS GIGANTEUS, Pliensbachian, Jurassic, Blockley, UK – Genuine Specimen with COA

This is a rare 5.75-inch MEGATEUTHIS GIGANTEUS belemnite fossil from the Pliensbachian stage of the Jurassic period, discovered in Blockley, United Kingdom. Belemnites were an extinct group of marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell known as the guard, which fossilised over millions of years, leaving behind bullet-shaped remains that are commonly found in Jurassic marine deposits.

Geological Context:

This fossil comes from Lower Jurassic deposits in Blockley, which is well known for its well-preserved marine fossils. The Pliensbachian stage (approximately 187-182 million years ago) was a time of widespread shallow seas, where cephalopods, including belemnites and ammonites, thrived.

The fossil-bearing rock layers in Blockley belong to the Marlstone Rock Formation, a well-studied deposit in England’s Jurassic Coast. This formation is rich in iron-rich sandy limestones, mudstones, and calcareous siltstones, providing an ideal environment for the fossilisation of marine life.

Fossil Type & Species Information:

Belemnites, like MEGATEUTHIS GIGANTEUS, were nektonic predators that actively swam in the Jurassic seas, preying on small fish and invertebrates. Their torpedo-shaped body and streamlined internal skeleton (rostrum or guard) helped them remain stable while moving through the water.

Key characteristics of MEGATEUTHIS GIGANTEUS include:

A large, robust guard that is significantly thicker than other belemnite species

A tapered, elongated conical shape, with a pointed posterior end

Calcite-replaced preservation, maintaining the original structure

Fine surface striations and growth lines, which provide insight into its growth and environmental conditions

Key Features:

Authentic MEGATEUTHIS GIGANTEUS fossil belemnite

Size: 5.75 inches in length

Age: Approximately 187-182 million years old (Pliensbachian, Jurassic)

Geological Formation: Marlstone Rock Formation

Origin: Blockley, United Kingdom

Well-preserved specimen with fine surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Size & Condition:

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

The fossil has been professionally prepared to highlight its natural details.

Why Collect Belemnites?

Belemnites are highly sought-after fossils due to their importance as index fossils, helping geologists date rock layers in the Jurassic and Cretaceous periods. Their unique evolutionary adaptations, including their streamlined internal shell and predatory lifestyle, make them a fascinating addition to any fossil collection.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

5" RARE Fossil Belemnite – MEGATEUTHIS GIGANTEUS, Pliensbachian, Jurassic, Blockley, UK – Genuine Specimen with COA

This is a rare 5.75-inch MEGATEUTHIS GIGANTEUS belemnite fossil from the Pliensbachian stage of the Jurassic period, discovered in Blockley, United Kingdom. Belemnites were an extinct group of marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell known as the guard, which fossilised over millions of years, leaving behind bullet-shaped remains that are commonly found in Jurassic marine deposits.

Geological Context:

This fossil comes from Lower Jurassic deposits in Blockley, which is well known for its well-preserved marine fossils. The Pliensbachian stage (approximately 187-182 million years ago) was a time of widespread shallow seas, where cephalopods, including belemnites and ammonites, thrived.

The fossil-bearing rock layers in Blockley belong to the Marlstone Rock Formation, a well-studied deposit in England’s Jurassic Coast. This formation is rich in iron-rich sandy limestones, mudstones, and calcareous siltstones, providing an ideal environment for the fossilisation of marine life.

Fossil Type & Species Information:

Belemnites, like MEGATEUTHIS GIGANTEUS, were nektonic predators that actively swam in the Jurassic seas, preying on small fish and invertebrates. Their torpedo-shaped body and streamlined internal skeleton (rostrum or guard) helped them remain stable while moving through the water.

Key characteristics of MEGATEUTHIS GIGANTEUS include:

A large, robust guard that is significantly thicker than other belemnite species

A tapered, elongated conical shape, with a pointed posterior end

Calcite-replaced preservation, maintaining the original structure

Fine surface striations and growth lines, which provide insight into its growth and environmental conditions

Key Features:

Authentic MEGATEUTHIS GIGANTEUS fossil belemnite

Size: 5.75 inches in length

Age: Approximately 187-182 million years old (Pliensbachian, Jurassic)

Geological Formation: Marlstone Rock Formation

Origin: Blockley, United Kingdom

Well-preserved specimen with fine surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Size & Condition:

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

The fossil has been professionally prepared to highlight its natural details.

Why Collect Belemnites?

Belemnites are highly sought-after fossils due to their importance as index fossils, helping geologists date rock layers in the Jurassic and Cretaceous periods. Their unique evolutionary adaptations, including their streamlined internal shell and predatory lifestyle, make them a fascinating addition to any fossil collection.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

5.75" RARE Fossil Belemnite – MEGATEUTHIS GIGANTEUS, Pliensbachian, Jurassic, Blockley, UK – Genuine Specimen with COA

This is a rare 5.75-inch MEGATEUTHIS GIGANTEUS belemnite fossil from the Pliensbachian stage of the Jurassic period, discovered in Blockley, United Kingdom. Belemnites were an extinct group of marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell known as the guard, which fossilised over millions of years, leaving behind bullet-shaped remains that are commonly found in Jurassic marine deposits.

Geological Context:

This fossil comes from Lower Jurassic deposits in Blockley, which is well known for its well-preserved marine fossils. The Pliensbachian stage (approximately 187-182 million years ago) was a time of widespread shallow seas, where cephalopods, including belemnites and ammonites, thrived.

The fossil-bearing rock layers in Blockley belong to the Marlstone Rock Formation, a well-studied deposit in England’s Jurassic Coast. This formation is rich in iron-rich sandy limestones, mudstones, and calcareous siltstones, providing an ideal environment for the fossilisation of marine life.

Fossil Type & Species Information:

Belemnites, like MEGATEUTHIS GIGANTEUS, were nektonic predators that actively swam in the Jurassic seas, preying on small fish and invertebrates. Their torpedo-shaped body and streamlined internal skeleton (rostrum or guard) helped them remain stable while moving through the water.

Key characteristics of MEGATEUTHIS GIGANTEUS include:

A large, robust guard that is significantly thicker than other belemnite species

A tapered, elongated conical shape, with a pointed posterior end

Calcite-replaced preservation, maintaining the original structure

Fine surface striations and growth lines, which provide insight into its growth and environmental conditions

Key Features:

Authentic MEGATEUTHIS GIGANTEUS fossil belemnite

Size: 5.75 inches in length

Age: Approximately 187-182 million years old (Pliensbachian, Jurassic)

Geological Formation: Marlstone Rock Formation

Origin: Blockley, United Kingdom

Well-preserved specimen with fine surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Size & Condition:

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

The fossil has been professionally prepared to highlight its natural details.

Why Collect Belemnites?

Belemnites are highly sought-after fossils due to their importance as index fossils, helping geologists date rock layers in the Jurassic and Cretaceous periods. Their unique evolutionary adaptations, including their streamlined internal shell and predatory lifestyle, make them a fascinating addition to any fossil collection.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

5.5" RARE Fossil Belemnite – Belemnites explanatus, Kellaways Beds, Callovian, Jurassic, Latton, Swindon, UK – Genuine Specimen with COA

This is a rare 5.5-inch Belemnites explanatus belemnite fossil from the Kellaways Beds, Callovian stage of the Jurassic period, discovered in Latton, Swindon, United Kingdom. Belemnites were extinct marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell known as the guard, which fossilised over millions of years, leaving behind well-preserved, bullet-shaped remains.

Geological Context

This fossil originates from the Kellaways Beds, a Middle Jurassic sedimentary formation within the Oxford Clay Group. The Callovian stage (approximately 163-166 million years ago) was a time when shallow marine environments dominated much of what is now the UK. These conditions allowed for the exceptional preservation of marine life, including ammonites, marine reptiles, and belemnites like Explanatus.

The Kellaways Beds are divided into the Kellaways Sand Member (a sandy marine deposit) and the Kellaways Clay Member (a more fossiliferous silty clay). This belemnite was preserved in these marine sediments, providing a unique glimpse into Jurassic marine ecosystems.

Fossil Type & Species Information

Belemnites, like Explanatus, were active predatory cephalopods that swam in Jurassic seas. They had a torpedo-shaped body and a calcified internal rostrum (guard), which provided balance and stability in the water. Unlike modern squid, they had no suckers but instead used small hooks on their arms to catch prey.

Key characteristics of Belemnites explanatus belemnites include:

A robust, elongated guard with a slightly tapered, conical form

Calcitic preservation, replacing the original aragonite shell material

Fine growth lines and surface textures, which can be seen on well-preserved specimens

Key Features:

Authentic Explanatus fossil belemnite

Size: 5.5 inches in length

Age: Approximately 163-166 million years old (Callovian, Jurassic)

Geological Formation: Kellaways Beds, Oxford Clay Group

Origin: Latton, Swindon, United Kingdom

Distinctive bullet-shaped guard with natural surface features

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Size & Condition

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

This fossil has been professionally prepared, preserving its natural details.

Why Collect Belemnites?

Belemnites are valuable additions to any fossil collection due to their role as important index fossils, aiding in the dating of Jurassic and Cretaceous rock layers. Their unique evolutionary adaptations make them a fascinating group within cephalopod history.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

Fossil Belemnite - Cylindroteuthis puzosiana, Oxford Clay, Oxfordian, Jurassic, Bedfordshire, UK – Genuine Specimen with COA

This is a genuine Cylindroteuthis puzosiana belemnite fossil from the Oxfordian stage of the Jurassic period, discovered in Bedfordshire, United Kingdom. Belemnites were an extinct group of marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, they possessed an internal shell known as a guard, which fossilised over millions of years and is a common feature of Jurassic marine deposits.

Geological Context

This specimen originates from the Oxford Clay Formation, a well-documented marine deposit from the Oxfordian stage (Late Jurassic, approximately 157-163 million years ago). The Oxford Clay is rich in fossils, including ammonites, marine reptiles, and belemnites, which thrived in the shallow seas that covered what is now southern England during the Jurassic period. The fine-grained, organic-rich sedimentary rock of this formation provides excellent conditions for fossil preservation.

Fossil Type & Species Information

Belemnites, like Cylindroteuthis puzosiana, were marine predators with a torpedo-shaped body and a hard, internal rostrum (guard) that provided stability in the water. Unlike ammonites, belemnites lacked an external shell and had ten arms lined with small hooks for catching prey. They are thought to have played a vital role in the Jurassic marine food chain, serving as prey for large marine reptiles such as ichthyosaurs and pliosaurs.

Cylindroteuthis puzosiana is characterized by:

A robust, elongated guard with a smooth surface

A distinctive bullet-like shape tapering to a point

Calcitic composition, replacing the original aragonite structure over time

Key Features:

Authentic Cylindroteuthis puzosiana fossil belemnite

Age: Approximately 157-163 million years old (Oxfordian, Jurassic)

Geological Formation: Oxford Clay Formation

Origin: Bedfordshire, United Kingdom

Distinctive bullet-shaped guard with well-preserved surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Size & Condition

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

This fossil is professionally prepared, preserving its natural features.

Why Collect Belemnites?

Belemnites are excellent additions to any fossil collection, offering insight into the evolutionary history of cephalopods. Their abundance in Jurassic and Cretaceous deposits makes them important index fossils for dating rock layers.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

Fossil Belemnite – Cylindroteuthis puzosiana, Oxfordian, Jurassic, Bedfordshire, UK – Genuine Specimen with COA

This is a genuine Cylindroteuthis puzosiana belemnite fossil from the Oxfordian stage of the Jurassic period, discovered in Bedfordshire, United Kingdom. Belemnites were extinct marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, they had an internal shell called a guard, which fossilised over millions of years and is a common find in Jurassic marine deposits.

This well-preserved specimen exhibits its characteristic elongated, bullet-shaped guard, with clear surface details. Belemnites played a significant role in Jurassic marine ecosystems, serving as a crucial part of the food chain. Their fossils are highly valued by collectors, researchers, and those interested in prehistoric marine life.

Key Features:

Authentic Cylindroteuthis puzosiana fossil belemnite

Age: Approximately 157-163 million years old (Oxfordian, Jurassic)

Origin: Bedfordshire, United Kingdom

Distinctive bullet-shaped guard with natural surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

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

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

4" PASSALOTEUTHIS APICURVATUS Fossil Belemnite – Lower Sinemurian, Jurassic, Lyme Regis, UK – Genuine Specimen with COA

This is a genuine 4-inch PASSALOTEUTHIS APICURVATUSa belemnite fossil from the Lower Sinemurian stage of the Jurassic period, discovered in Lyme Regis, United Kingdom. Belemnites were extinct marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell called a guard, which fossilised over millions of years, making them a key component of Jurassic marine deposits.

This well-preserved specimen showcases its characteristic elongated, bullet-shaped guard, with visible structural details. Lyme Regis is one of the most famous fossil sites in the world, known for producing high-quality Jurassic marine fossils. Belemnite fossils like this offer valuable insights into prehistoric marine ecosystems.

Key Features:

Authentic PASSALOTEUTHIS APICURVATUS fossil belemnite

Size: 4 inches in length

Age: Approximately 190-195 million years old (Lower Sinemurian, Jurassic)

Origin: Lyme Regis, United Kingdom

Well-preserved specimen with fine structural details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Scale Rule Squares = 1cm – Please see photos for accurate sizing.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

4.25" PASSALOTEUTHIS APICURVATUS Fossil Belemnite – Lower Sinemurian, Jurassic, Hornsea nr Cowden, UK – Genuine Specimen with COA

This is a genuine 4.25-inch PASSALOTEUTHIS APICURVATUS belemnite fossil from the Lower Sinemurian stage of the Jurassic period, discovered at Hornsea near Cowden, United Kingdom. Belemnites were extinct marine cephalopods closely related to modern squid and cuttlefish. Unlike ammonites, belemnites had an internal shell known as a guard, which fossilised over millions of years, making them key indicators of Jurassic marine environments.

This specimen exhibits excellent preservation, featuring its elongated, bullet-shaped guard with well-defined surface details. Fossils from the Sinemurian period provide valuable insights into early Jurassic marine life, making this an excellent addition for collectors and researchers.

Key Features:

PASSALOTEUTHIS APICURVATUS fossil belemnite

Size: 4.25 inches in length

Age: Approximately 190-195 million years old (Lower Sinemurian, Jurassic)

Origin: Hornsea near Cowden, United Kingdom

Well-preserved specimen with clear surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

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

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

5" Fossil Belemnite – Cylindroteuthis puzosiana, Oxford Clay, Jurassic, Weymouth, UK – Genuine Specimen with COA

This is a genuine 5-inch CYLINDROTEUTHIS PUZOSIANA Fossil Belemnite from the Oxford Clay Formation, Oxfordian stage of the Jurassic period, discovered in Weymouth, United Kingdom. Belemnites were extinct marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, they had an internal shell known as the guard, which fossilised over millions of years, providing an important insight into Jurassic marine life.

This well-preserved specimen displays its characteristic elongated, bullet-shaped guard, with visible structural details. Belemnites played a key role in prehistoric marine ecosystems and are highly sought after by fossil collectors and researchers alike.

Key Features:

Authentic Cylindroteuthis puzosiana fossil belemnite

Size: 5 inches in length

Age: Approximately 157-163 million years old (Oxfordian, Jurassic)

Origin: Oxford Clay, Weymouth, UK

Well-preserved specimen with natural surface details

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

Scale Rule Squares = 1cm – Please see photos for accurate sizing.

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.

[uk-fossils]

RARE 6.5" Fossil Belemnite – Cylindroteuthis puzosiana, Oxford Clay, Jurassic, Peterborough, UK – Genuine Specimen with COA

This is a rare and well-preserved 6.5-inch Cylindroteuthis puzosiana belemnite fossil from the Oxford Clay Formation, Oxfordian stage of the Jurassic period, discovered in Peterborough, United Kingdom. Belemnites were extinct marine cephalopods related to modern squid and cuttlefish. Unlike ammonites, they possessed an internal shell known as the guard, which fossilised over millions of years and is commonly found in Jurassic marine deposits.

This specimen showcases exceptional preservation, with its characteristic elongated, bullet-shaped guard intact and well-defined surface details. Belemnites played a crucial role in Jurassic marine ecosystems, serving as an essential food source for marine reptiles and larger predatory fish.

Key Features:

Authentic Cylindroteuthis puzosiana fossil belemnite

Size: 6.5 inches in length

Age: Approximately 157-163 million years old (Oxfordian, Jurassic)

Origin: Oxford Clay, Peterborough, UK

Exceptional preservation with detailed surface features

From the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world

100 percent genuine specimen with Certificate of Authenticity

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

All of our fossils are guaranteed genuine and securely packaged for worldwide shipping.