#authentic fossil shell

[uk-fossils]

Gryphaea arcuata Fossil Bivalve, Blue Lias Formation, Jurassic UK | Frampton-on-Severn Gloucestershire + COA

Gryphaea arcuata Fossil Bivalve – Blue Lias Formation, Lower Jurassic, Frampton-on-Severn, Gloucestershire, England

This beautifully curved bivalve fossil is a classic example of Gryphaea arcuata, a member of the extinct oyster family that thrived in Jurassic seas. Commonly referred to as a “Devil’s Toenail” due to its curled shell shape, this specimen was collected from the famous Blue Lias Formation at Frampton-on-Severn, in Gloucestershire, England.

Fossil Type & Species:

Type: Invertebrate Fossil (Bivalve – Oyster)

Species: Gryphaea arcuata

Phylum: Mollusca

Class: Bivalvia

Order: Ostreoida

Superfamily: Ostreoidea

Family: Gryphaeidae

Described by: Lamarck, 1801

Geological & Stratigraphic Details:

Location: Frampton-on-Severn, Gloucestershire, UK

Formation: Blue Lias Formation

Geological Stage: Lower Jurassic (Hettangian–Sinemurian)

Age: ~201–190 million years ago

Biozone: Planorbis or Bucklandi zones, common to basal Jurassic marine sequences

Depositional Environment: Shallow marine shelf, typically low-energy, muddy seafloor ideal for benthic bivalves like Gryphaea

Morphology & Features: This Gryphaea arcuata specimen shows:

Distinctively curved, thick lower valve (the larger, more robust part of the shell)

Smaller, flatter upper valve which often detached during fossilisation

Fine growth lines and concentric ridges visible across the surface

Natural preservation in a pale grey to blue-grey tone from the Blue Lias limestone matrix

Classic “Devil’s Toenail” shape, iconic in UK fossil heritage

Notable: Gryphaea arcuata is one of the most famous and easily recognisable fossils from Britain’s Jurassic Coast and inland exposures like the Severn Estuary. Often used as a teaching specimen and found in museum collections worldwide, it provides key insight into early Jurassic marine ecology.

Specimen Details:

Origin: Frampton-on-Severn, Gloucestershire, UK

Species: Gryphaea arcuata

Fossil Type: Bivalve Shell (Oyster)

Geological Stage: Lower Jurassic

Formation: Blue Lias

Size Reference: Scale rule square = 1cm (see listing photo for full sizing)

Note: The specimen shown is the exact one you will receive

Authenticity & Quality: We guarantee all fossils are 100% genuine. This piece is professionally selected and comes with a Certificate of Authenticity. No reconstruction or artificial alteration has been applied.

Why Choose This Fossil? Perfect for:

Beginners and seasoned fossil collectors alike

Educational or scientific use

Natural history displays

Iconic UK fossil souvenirs and gifts

Shipping & Packaging: We use eco-conscious, secure packaging and offer tracked global shipping. Every item is carefully wrapped to ensure safe delivery.

Add a true Jurassic classic to your collection with this authentic Gryphaea arcuata fossil from the Blue Lias of Gloucestershire.

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

[averycutesalamander]

*saunters in here* why hello there.

You know what I’m here for :3

as you might’ve figured by now my hobbies are just going insane in whatever medium the brainrot demands, but. I do have some fun details on venue preferences!

I think loud & crowded or extra luxurious places would not be for me; I’d feel very out of place somewhere like a night club or a fancy restaurant. (Although I don’t think boothill is the type to go to fancy restaurants anyway; who needs them when you can find food that’s a lot more fun and authentic in some small diner out in bumfuck nowhere?)

I find quieter moments more personal; something like sitting by a bonfire, talking all night (seriously, i fucking love bonfires. And if we can make s’mores or some other food that’s cooked over a fire? Baby I’m yours. I might suck absolute ass at camping, but I’ll brave the bugs and the crawlies and the hell of tent set up for a cozy night by a fire. Bring out a guitar and some songs we can both sing, and it’s literally a dream come true), or a day trip to the beach to dig around in the sand and get up to some shenanigans in the water. Or a nice hike out in nature. (Maybe not somewhere with a TON of spiders but. Oh well that’s not really something you can predict. And you bet if I find any isopods I’d be calling him over and excitedly pointing at them.)

Take me out stargazing and I’ll literally be marrying you X) We can bring some blankets for when the night gets chilly, some tasty snacks to eat, and he could tell me the names of all those constellations I don’t know (I’ll probably fail to connect all the metaphorical dots, but I’ll try my best anyway). And you BET I’ll be cozying up to boothill to better see where in the sky he’s pointing at. It’s just easier that way, when your heads are pressed close together. No other reason. *bats eyelashes*

Anyways do with that information what you will ^3^ You can build on one of these or make up something else entirely if you want, I trust your judgement wholeheartedly <3

hmmmMMMMmmm i see i see..... yes, i think boothill would take you...

Lakeside rock hunting!!

Now, if you've never been rock hunting, you're in for a treat. There are plenty of beaches coated with rocks as far as the eye can see, and you can find one all to yourself if you're lucky. You'll have a damn near infinite choice of stones and shells and fossils and water-worn glass! If you do it in the early spring right after the lakes have melted, you'll find all sorts of fresh rocks dredged up by the ice and deposited on the shore. Also, no bugs that early! Just bring your warm clothes, and maybe your water shoes if you want to go searching in the water :3

Boothill very much enjoys having a task on these quieter outings, so you bet he's going to set missions for himself. He'll figure out which sorts of things are your favorite, then hunt all of them down meticulously. He also gathers things that remind of him of you ❤ By the end of the day, you'll have a mighty collection to your name!!

When it starts getting dark, the two of you can start up a fire a bit further up the shore. You bet he's bringing all sorts of snacks and goodies for you! He's extremely adept with campfire cooking, as you can imagine, so the only marshmallows he burns are the ones he likes to eat himself (the goddamn weirdo lol.) Unless you ALSO like burnt marshmallows, in which case the two of you are a freaky match made in heaven lol

[uk-fossils]

Rare Cardita listeri Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Cardita listeri Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Cardita listeri fossil bivalve from the Lower Sinemurian stage of the Jurassic period, discovered in the Middle Lias Formation at Blockley, United Kingdom. This well-preserved specimen highlights the distinct ridged shell structure that characterizes the Cardita genus.

About Cardita listeri:

Cardita listeri is an extinct species of marine bivalve that thrived in the shallow seas during the Jurassic period. Known for its thick, robust shell with pronounced radial ribs, Cardita listeri was a burrowing filter feeder, playing a vital role in ancient marine ecosystems. Its durable shell allowed it to withstand dynamic marine conditions, making it a common find in certain fossil beds.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is renowned for its rich marine fossil deposits, preserving a variety of life forms such as ammonites, belemnites, gastropods, and bivalves like Cardita listeri. The Lower Sinemurian period marks a time of abundant shallow seas, ideal for marine biodiversity.

Fossil Details:

100% Genuine Cardita listeri Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Thick, Ribbed Shell Structure with Natural Detailing

Scale Rule Squares/Cube = 1cm (Please refer to photos for full sizing)

Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Detailed ribbed shell in excellent preservation

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its geological and historical significance

A unique addition to any fossil or natural history collection

This Cardita listeri fossil bivalve offers a glimpse into Earth’s prehistoric marine environments and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Add this remarkable piece of Jurassic marine history to your collection today!

[uk-fossils]

Rare Cardita listeri Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Cardita listeri Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Cardita listeri fossil bivalve from the Lower Sinemurian stage of the Jurassic period, discovered in the Middle Lias Formation at Blockley, United Kingdom. This well-preserved specimen highlights the distinct ridged shell structure that characterizes the Cardita genus.

About Cardita listeri:

Cardita listeri is an extinct species of marine bivalve that thrived in the shallow seas during the Jurassic period. Known for its thick, robust shell with pronounced radial ribs, Cardita listeri was a burrowing filter feeder, playing a vital role in ancient marine ecosystems. Its durable shell allowed it to withstand dynamic marine conditions, making it a common find in certain fossil beds.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is renowned for its rich marine fossil deposits, preserving a variety of life forms such as ammonites, belemnites, gastropods, and bivalves like Cardita listeri. The Lower Sinemurian period marks a time of abundant shallow seas, ideal for marine biodiversity.

Fossil Details:

100% Genuine Cardita listeri Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Thick, Ribbed Shell Structure with Natural Detailing

Scale Rule Squares/Cube = 1cm (Please refer to photos for full sizing)

Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Detailed ribbed shell in excellent preservation

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its geological and historical significance

A unique addition to any fossil or natural history collection

This Cardita listeri fossil bivalve offers a glimpse into Earth’s prehistoric marine environments and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Add this remarkable piece of Jurassic marine history to your collection today!

[uk-fossils]

Rare Pleuromya costata Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Pleuromya costata Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Pleuromya costata fossil bivalve from the Lower Sinemurian stage of the Jurassic period, discovered in the Middle Lias Formation at Blockley, United Kingdom. This well-preserved specimen showcases the distinctive ribbed shell structure characteristic of the Pleuromya genus.

About Pleuromya costata:

Pleuromya costata is an extinct species of marine bivalve that inhabited shallow seas during the Jurassic period. Recognized for its elongated, ribbed shell and streamlined form, Pleuromya costata was adapted for life partially buried in soft seafloor sediments. As a filter feeder, it played a key role in the ancient marine ecosystem.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is a renowned fossil-bearing deposit, known for its rich marine life, including ammonites, belemnites, gastropods, and bivalves like Pleuromya. The Lower Sinemurian stage marks a time when shallow seas flourished with diverse marine organisms, now preserved in sedimentary rock layers.

Fossil Details:

100% Genuine Pleuromya costata Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Elongated Shell with Prominent Ribbing

Scale Rule Squares/Cube = 1cm (Please see photos for full sizing)

Comes with a Certificate of Authenticity

From the renowned Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Well-preserved ribbed shell structure

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical significance

A valuable addition to any fossil or natural history collection

This Pleuromya costata fossil bivalve offers a remarkable glimpse into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Add this exceptional piece of Jurassic marine history to your collection today!

[uk-fossils]

Rare Pleuromya uniformis Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Pleuromya uniformis Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Pleuromya uniformis fossil bivalve from the Lower Sinemurian stage of the Jurassic period, found in the Middle Lias Formation at Blockley, United Kingdom. This genuine specimen showcases the elongated shell structure and fine preservation typical of the Pleuromya genus.

About Pleuromya uniformis:

Pleuromya uniformis is an extinct species of marine bivalve that thrived in shallow seas during the Jurassic period. Known for its elongated, symmetrical shell and subtle growth lines, Pleuromya was a sediment-dwelling filter feeder that played a significant role in Jurassic marine ecosystems. Its streamlined form made it well-suited for life buried within soft seafloor sediments.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is renowned for its rich fossil record, preserving a variety of marine life including ammonites, belemnites, gastropods, and bivalves like Pleuromya. The Lower Sinemurian stage represents a time of extensive shallow seas, ideal for the proliferation of marine invertebrates.

Fossil Details:

100% Genuine Pleuromya uniformis Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Elongated Shell with Fine Growth Lines

Scale Rule Squares/Cube = 1cm (Please refer to photos for full sizing)

Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Excellent preservation showcasing natural shell features

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical significance

A valuable addition to any fossil or natural history collection

This Pleuromya uniformis fossil bivalve offers a fascinating glimpse into ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Add this incredible piece of Jurassic marine history to your collection today!

[uk-fossils]

Rare Bathrotomaria reticulata Fossil Gastropod – Kimmeridge Clay, Jurassic, Dorset, UK | Authentic Specimen

Rare Bathrotomaria reticulata Fossil Gastropod – Kimmeridge Clay Formation, Jurassic Period – Osmington Mills, Dorset, United Kingdom

This listing features a rare Bathrotomaria reticulata fossil gastropod from the Kimmeridge Clay Formation of the Jurassic period, discovered at Osmington Mills, Dorset, United Kingdom. This beautifully preserved fossil showcases the distinctive spiral shell structure and intricate surface patterns characteristic of this ancient marine snail.

About Bathrotomaria reticulata:

Bathrotomaria reticulata is an extinct species of marine gastropod that thrived in the Jurassic seas. Known for its tightly coiled spiral shell and fine reticulated surface texture, this species is a prime example of the diversity of marine life during the Jurassic period. As a member of the ancient gastropod family, Bathrotomaria reticulata played a role in the complex ecosystems of shallow marine environments.

Geological Context:

Formation: Kimmeridge Clay

Age: Late Jurassic (~157 – 152 million years ago)

Location: Osmington Mills, Dorset, United Kingdom

The Kimmeridge Clay Formation is a renowned fossil-bearing deposit, known for its rich assemblage of marine life, including ammonites, bivalves, marine reptiles, and gastropods. Formed in deep marine environments, the fine sediments of this formation have preserved delicate fossils in remarkable detail.

Fossil Details:

100% Genuine Bathrotomaria reticulata Fossil Gastropod

Age: Late Jurassic (~157 – 152 million years ago)

Origin: Osmington Mills, Dorset, United Kingdom

Excellent Preservation with Fine Surface Detailing

Scale Rule Squares/Cube = 1cm (Please refer to photos for full sizing)

Comes with a Certificate of Authenticity

From the renowned Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Gastropod Fossil from the UK

Detailed preservation showcasing the shell’s unique textures

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its geological and historical significance

A unique addition to any fossil or natural history collection

This Bathrotomaria reticulata fossil gastropod offers a glimpse into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Add this incredible piece of Jurassic marine history to your collection today!

[uk-fossils]

Rare Inoceramus sp Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Inoceramus sp Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Inoceramus sp fossil bivalve from the Lower Sinemurian stage of the Jurassic period, found in the Middle Lias Formation at Blockley, United Kingdom. This authentic specimen displays the characteristic robust shell structure of the Inoceramus genus, making it a striking addition to any fossil collection.

About Inoceramus sp:

Inoceramus is a genus of extinct marine bivalves that thrived in the seas of the Jurassic and Cretaceous periods. Known for their thick, ridged shells and large size, Inoceramus species were filter feeders that played a crucial role in ancient marine ecosystems. Their distinct shell morphology and widespread distribution make them important index fossils for dating sedimentary rock layers.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is known for its rich marine fossil deposits, including ammonites, belemnites, and bivalves like Inoceramus. The Lower Sinemurian stage was marked by shallow seas that provided ideal conditions for the preservation of marine life.

Fossil Details:

100% Genuine Inoceramus sp Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Robust Shell Structure with Natural Detailing

Scale Rule Squares/Cube = 1cm (Please see photos for full sizing)

Comes with a Certificate of Authenticity

From the esteemed Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Excellent preservation with clear shell features

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical value

A valuable addition to any fossil or natural history collection

This Inoceramus sp fossil bivalve provides a fascinating look into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Don’t miss the opportunity to own this remarkable piece of Jurassic marine history!

[uk-fossils]

Rare Inoceramus sp Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Inoceramus sp Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Inoceramus sp fossil bivalve from the Lower Sinemurian stage of the Jurassic period, found in the Middle Lias Formation at Blockley, United Kingdom. This authentic specimen displays the characteristic robust shell structure of the Inoceramus genus, making it a striking addition to any fossil collection.

About Inoceramus sp:

Inoceramus is a genus of extinct marine bivalves that thrived in the seas of the Jurassic and Cretaceous periods. Known for their thick, ridged shells and large size, Inoceramus species were filter feeders that played a crucial role in ancient marine ecosystems. Their distinct shell morphology and widespread distribution make them important index fossils for dating sedimentary rock layers.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is known for its rich marine fossil deposits, including ammonites, belemnites, and bivalves like Inoceramus. The Lower Sinemurian stage was marked by shallow seas that provided ideal conditions for the preservation of marine life.

Fossil Details:

100% Genuine Inoceramus sp Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Robust Shell Structure with Natural Detailing

Scale Rule Squares/Cube = 1cm (Please see photos for full sizing)

Comes with a Certificate of Authenticity

From the esteemed Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Excellent preservation with clear shell features

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical value

A valuable addition to any fossil or natural history collection

This Inoceramus sp fossil bivalve provides a fascinating look into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Don’t miss the opportunity to own this remarkable piece of Jurassic marine history!

[uk-fossils]

Rare Inoceramus sp Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Inoceramus sp Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Inoceramus sp fossil bivalve from the Lower Sinemurian stage of the Jurassic period, found in the Middle Lias Formation at Blockley, United Kingdom. This authentic specimen displays the characteristic robust shell structure of the Inoceramus genus, making it a striking addition to any fossil collection.

About Inoceramus sp:

Inoceramus is a genus of extinct marine bivalves that thrived in the seas of the Jurassic and Cretaceous periods. Known for their thick, ridged shells and large size, Inoceramus species were filter feeders that played a crucial role in ancient marine ecosystems. Their distinct shell morphology and widespread distribution make them important index fossils for dating sedimentary rock layers.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is known for its rich marine fossil deposits, including ammonites, belemnites, and bivalves like Inoceramus. The Lower Sinemurian stage was marked by shallow seas that provided ideal conditions for the preservation of marine life.

Fossil Details:

100% Genuine Inoceramus sp Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Robust Shell Structure with Natural Detailing

Scale Rule Squares/Cube = 1cm (Please see photos for full sizing)

Comes with a Certificate of Authenticity

From the esteemed Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Excellent preservation with clear shell features

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical value

A valuable addition to any fossil or natural history collection

This Inoceramus sp fossil bivalve provides a fascinating look into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Don’t miss the opportunity to own this remarkable piece of Jurassic marine history!

[uk-fossils]

Rare Lima gigantea Fossil Bivalve – Middle Lias, Lower Sinemurian, Jurassic, UK | Authentic Specimen

Rare Lima gigantea Fossil Bivalve – Lower Sinemurian Stage, Jurassic Period – Blockley, United Kingdom

This listing features a rare Lima gigantea fossil bivalve from the Lower Sinemurian stage of the Jurassic period, discovered in the Middle Lias Formation at Blockley, United Kingdom. This authentic specimen beautifully displays the ribbed shell structure that characterizes the Lima genus, offering a glimpse into prehistoric marine life.

About Lima gigantea:

Lima gigantea is an extinct species of scallop-like bivalve that thrived in shallow Jurassic seas. Known for its large, fan-shaped shell with distinct radial ribbing, Lima gigantea was a filter feeder that played an important role in the ancient marine ecosystem. Its striking appearance and excellent fossilization make it a prized addition to any fossil collection.

Geological Context:

Formation: Middle Lias

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Location: Blockley, United Kingdom

The Middle Lias Formation is renowned for its well-preserved marine fossils, including ammonites, belemnites, and bivalves like Lima gigantea. The Lower Sinemurian represents a time of flourishing marine biodiversity, preserved within these ancient sedimentary rocks.

Fossil Details:

100% Genuine Lima gigantea Fossil Bivalve

Age: Lower Sinemurian, Jurassic (~199 – 190 million years ago)

Origin: Blockley, United Kingdom

Beautiful Natural Preservation with Distinct Ribbing

Scale Rule Squares/Cube = 1cm (Please refer to photos for full sizing)

Comes with a Certificate of Authenticity

From the prestigious Alice Purnell Collection, one of the world’s largest ammonite and marine fossil collections

Why This Specimen is Special:

Rare Jurassic Bivalve Fossil from the UK

Excellent preservation with detailed ribbing and shell form

Ideal for Collectors, Museums, or Educational Displays

Carefully selected for its scientific and historical significance

A unique addition to any fossil or natural history collection

This Lima gigantea fossil bivalve offers a fascinating glimpse into Earth’s ancient marine ecosystems and is perfect for fossil enthusiasts, educators, and collectors.

📦 Fast & Secure Shipping 🛡️ 100% Authenticity Guaranteed 💎 A Premium Collector’s Fossil Specimen

Don’t miss the opportunity to own this captivating piece of Jurassic marine history!

[uk-fossils]

Bigotites thevenini Fossil Ammonite – Inferior Oolite, Jurassic Coast, Burton Bradstock, Dorset, UK

Presenting a rare and scientifically important Bigotites thevenini fossil ammonite from the famous Jurassic Coast near Burton Bradstock, Dorset, UK. This specimen originates from the renowned Inferior Oolite Formation, a key site for exceptional ammonite preservation.

Geological Unit: Inferior Oolite Formation

Geological Period: Jurassic

Stage: Bajocian (Middle Jurassic)

Depositional Environment: Shallow marine carbonate platform

Order: Ammonitida

Superfamily: Stephanoceratoidea

Family: Graphoceratidae

This impressive fossil was unearthed on 30 April 2025 by our dedicated field collectors, Alister and Alison. It was later cleaned, stabilised, and professionally prepared by Alison, ensuring its natural features and shell detail remain beautifully preserved. The piece remains in its original limestone matrix, offering superb visual and scientific appeal.

The photographs show the exact specimen you will receive, and a scale cube (1cm) is included for accurate size reference. For full dimensions, please consult the listing photos.

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

A rare opportunity to own a genuine Bigotites thevenini ammonite—ideal for collectors, educators, or as a unique natural history display item.

[uk-fossils]

LEIOCERAS OPALINUM Fossil Ammonite – Inferior Oolite, Jurassic Coast, Burton Bradstock, Dorset, UK

This listing showcases a striking specimen of Leioceras opalinum, a fossil ammonite sourced from the renowned Inferior Oolite of the Jurassic Coast, discovered at Burton Bradstock, Dorset, UK. This elegant fossil dates back to the Middle Jurassic period and represents a genus known for its compressed, discoidal shell and fine, evenly spaced ribs.

Leioceras ammonites are an important biostratigraphic marker in the early Bajocian stage, and this particular specimen highlights the key morphological traits that make this genus easily identifiable and highly collectable.

Geological Unit: Inferior Oolite Group

Formation: Burton Bradstock Beds

Geological Period: Middle Jurassic

Stage: Early Bajocian

Biozone: Leioceras opalinum Zone (defining species of the zone)

Depositional Environment: Shallow marine carbonate platform

Order: Ammonitida

Superfamily: Hildoceratoidea

Family: Graphoceratidae

This fossil was discovered by our skilled team members, Alister and Alison, on 17 January 2025, during a dedicated fossil-hunting expedition along the Jurassic Coast. It has been professionally cleaned, stabilised, and prepared by Alison to best preserve its structure and details.

The fossil is embedded in a naturally weathered limestone matrix and displays fine ribbing and distinct shell morphology. For full sizing, please refer to the included scale photo (scale cube = 1cm). The specimen shown is exactly the one you will receive.

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

This piece is a must-have for serious collectors, educational institutions, or enthusiasts of Mesozoic marine life. A true glimpse into Earth’s ancient oceans from one of the UK’s most famous fossil-bearing regions.

[uk-fossils]

Rare Parkinsonia (Garantiana) longidens Fossil Ammonite – Inferior Oolite, Jurassic Coast, Burton Bradstock, Dorset, UK

This listing features a rare and beautifully preserved Parkinsonia (Garantiana) longidens fossil ammonite, sourced from the famous Inferior Oolite strata of the Jurassic Coast at Burton Bradstock, Dorset, UK. This stunning specimen is part of the world-renowned Jurassic ammonite fauna, offering a glimpse into marine life from approximately 174 to 170 million years ago.

The genus Parkinsonia, within the subgenus Garantiana, includes finely ribbed, evolute ammonites known for their elegant ornamentation. The species longidens is particularly scarce and sought-after due to its distinctive elongated spines and clear suture patterns.

Geological Unit: Inferior Oolite Group

Formation: Burton Bradstock Beds

Geological Period: Middle Jurassic

Stage: Bajocian Stage

Biozone (if applicable): Parkinsonia zone (suggested by genus)

Depositional Environment: Shallow marine shelf, rich in molluscan fauna

Order: Ammonitida

Superfamily: Stephanoceratoidea

Family: Parkinsoniidae

This particular fossil was discovered on 17 January 2025 by our expert field team, Alister and Alison, during a systematic survey of the Burton Bradstock coast. It has been meticulously cleaned and conserved by Alison to ensure both its scientific integrity and aesthetic appeal are preserved.

The specimen is presented in a natural matrix block with exceptional visibility of its morphological features. Please refer to the photos for full sizing details (scale cube = 1cm). The photo shows the exact fossil you will receive.

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

This fossil is ideal for collectors, educators, or anyone fascinated by the ancient marine environments of the Jurassic. A fantastic piece of Britain’s rich palaeontological heritage.

[uk-fossils]

PLEUROCERAS Yorkshire Ammonite Fossil Jurassic Middle Lias Cleveland Ironstone Kettleness UK Authentic Specimen

This listing features a beautifully preserved Jurassic ammonite fossil of the genus Pleuroceras, collected from the Cleveland Ironstone Formation at Kettleness, North Yorkshire, UK. This authentic Middle Lias marine specimen is provided with a Certificate of Authenticity, and the photo shows the exact fossil you will receive.

Pleuroceras is a well-known genus of early Jurassic ammonites, particularly abundant in the Spinatum Zone of the Pliensbachian Stage, part of the Lower Jurassic (approximately 190–183 million years ago). It is part of the:

Order: Ammonitida

Superfamily: Eoderoceratoidea

Family: Amaltheidae

The Cleveland Ironstone Formation, particularly in the Kettleness region, is renowned for its rich fossil record, deposited in a shallow epicontinental marine environment during a period of relatively stable sea levels and oxygen-rich bottom waters.

Morphological Features:

Strongly ribbed, compressed shell

Evolute coiling with a wide umbilicus

Ribs radiate outward and often form spines or tubercles along the ventrolateral shoulders

Deep, crenulated suture lines characteristic of the group

These ammonites were nektonic (free-swimming) carnivores and play an important role in Jurassic biostratigraphy. Pleuroceras spinatum is a typical species from this horizon and may be represented in this specimen, pending precise taxonomic resolution.

Specimen Details:

Genus: Pleuroceras (likely Pleuroceras spinatum)

Fossil Type: Ammonite Shell

Geological Formation: Cleveland Ironstone Formation

Biozone: Spinatum Zone (likely)

Geological Age: Pliensbachian Stage, Lower Jurassic

Location: Kettleness, North Yorkshire, United Kingdom

Depositional Environment: Shallow marine shelf, iron-rich sedimentary basin

Family: Amaltheidae

This is an ideal specimen for collectors of British Jurassic ammonites, educational displays, or fossil enthusiasts looking to own a piece of Yorkshire’s palaeontological heritage.

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

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

[uk-fossils]

PARASPIDOCERAS MAMMILANUM Fossil Ammonite Middle Oxfordian Jurassic Le Vanneau Deux-Sevres France Authentic Specimen

This listing features an exquisite and authentic fossil ammonite of Paraspidoceras mammilanum, collected from Le Vanneau, Deux-Sèvres, France, in rocks dating to the Middle Oxfordian Stage of the Upper Jurassic Period (~161 to 157 million years ago). The specimen comes with a Certificate of Authenticity and the photos show the actual fossil you will receive.

Paraspidoceras mammilanum is a member of the:

Order: Ammonitida

Superfamily: Perisphinctoidea

Family: Aspidoceratidae

This genus and species are known for their elaborate ornamentation and are considered excellent biostratigraphic markers for Middle Oxfordian marine deposits. Fossils from this region were originally described by early French paleontologists studying ammonite zonation across Western Europe.

The rocks at Le Vanneau, in the Deux-Sèvres department of France, are part of well-documented Oxfordian marine deposits representing a warm, shallow epicontinental sea, which supported diverse invertebrate faunas, especially ammonites.

Morphology Features:

Involute, thick discoidal shell

Strong radial ribbing with characteristic tubercles (mammillate nodes) on the flanks

Wide whorl section with robust sculpturing

Slightly constricted apertures and ornate ventral keel

These features make Paraspidoceras one of the more visually striking genera within Aspidoceratidae, and the species mammilanum in particular is sought after for its distinctive ornamentation.

Specimen Information:

Species: Paraspidoceras mammilanum

Fossil Type: Ammonite Shell (internal mould/preserved shell)

Geological Stage: Middle Oxfordian (Upper Jurassic)

Location: Le Vanneau, Deux-Sèvres, France

Depositional Environment: Shallow marine carbonate shelf

Order: Ammonitida

Family: Aspidoceratidae

This ammonite is a stunning addition for collectors of Jurassic marine fossils, paleontology educators, or anyone with an appreciation for natural history and prehistoric marine life.

Scale rule cubes/squares = 1cm. Please refer to the photo for full sizing and detail.

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