#regular echinoid fossil

[uk-fossils]

Circopeltis baicheri Regular Echinoid Fossil, Ypresian Stage, Eocene France | Authentic Specimen + COA

CIRCOpeltis baicheri Regular Echinoid Fossil – Ypresian Stage, Early Eocene, Antugnac, France

This well-preserved fossil specimen is a rare Circopeltis baicheri, a regular echinoid (sea urchin) that lived during the Ypresian stage of the Early Eocene, approximately 56 to 47.8 million years ago. Found in the renowned marine fossil beds of Antugnac, southern France, this specimen exemplifies the morphological diversity and beauty of post-Paleocene echinoids.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid/Sea Urchin)

Species: Circopeltis baicheri

Phylum: Echinodermata

Class: Echinoidea

Order: Cidaroida (tentative placement)

Family: Cidaridae or related regular echinoid lineage

Described by: (Exact authority not formally cited; likely post-WWII paleontological records in European literature)

Geological & Stratigraphic Details:

Location: Antugnac, Aude, Occitanie, France

Formation: Ypresian marine marl and limestone beds

Geological Stage: Ypresian (Early Eocene)

Age: ~56–47.8 million years ago

Depositional Environment: Warm, shallow marine environment with carbonate-rich mud and fine sediment ideal for the preservation of echinoids

Biozone: Not specifically assigned; part of the broader Eocene echinoid-bearing beds of southern France

Morphology & Features: This Circopeltis baicheri specimen is noted for:

Symmetrical, globular to slightly flattened test (sea urchin shell)

Five distinct ambulacral zones with regularly spaced tubercles

No visible spines attached, though tubercle positions are preserved

Test diameter and surface ornamentation consistent with regular echinoid structure

Preserved in light beige to grey tones, sometimes with original sediment matrix attached

Notable: Circopeltis is a lesser-known but scientifically relevant genus of regular echinoids from the Eocene of France. Specimens like baicheri are rarely seen outside academic collections. Their presence helps define biodiversity recovery and reef evolution in the early Paleogene after the K-Pg mass extinction.

Specimen Details:

Origin: Antugnac, France

Species: Circopeltis baicheri

Fossil Type: Echinoid Shell (Regular Sea Urchin)

Geological Stage: Ypresian, Early Eocene

Size Reference: Scale rule square = 1cm (see photo for exact size)

Note: You will receive the exact specimen shown in the photograph

Authenticity & Quality: This fossil is professionally verified and 100% genuine. It comes with a Certificate of Authenticity. No restoration, casting, or enhancement has been applied.

Why Choose This Fossil? Ideal for:

Fossil collectors and echinoderm enthusiasts

Educational and teaching displays

Early Paleogene marine life studies

Decorative fossil art with scientific value

Shipping & Packaging: Fast, tracked shipping with secure, eco-conscious packaging. Each fossil is handled with expert care to ensure safe delivery.

Add a scientifically significant and visually elegant Circopeltis baicheri echinoid fossil to your collection from the beautiful marine beds of Antugnac, France.

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

[housecow]

What’s a thing that always makes you happy?

FOSSIL ECHINOIDS

also my regular chick fil a order of 2 sandwiches, 12pc nuggets, large soda, large fries, and a shake. i’ve been feeling ravenous lately and think i wanna make the order larger…

[bluenoo42]

Regular echinoid fossil I found today. It is from the Vectis formation and is around 80 million years old.

See the perfect five-fold symmetry as opposed to the irregular echinoid I posted yesterday.

[fossilquest-blog]

Fossil Quest : Central Texas Cretaceous Fossil Finds! Echinoid (Sea Urchin) Loriolia. These tiny round regular urchins are a fairly common in the Glen Rose Formation of Central Texas.

[uk-fossils]

Phymosoma Fossil Regular Echinoid Lower Cretaceous Spain Genuine Specimen

This listing features a genuine Phymosoma fossil, an excellent example of a regular echinoid (sea urchin) from the Lower Cretaceous Period (approximately 145 to 100 million years ago). This well-preserved specimen originates from the marine fossil deposits of Spain, known for their quality Cretaceous echinoderms.

Geology & Origin:

During the Lower Cretaceous, much of what is now Spain was covered by shallow seas teeming with marine life. Echinoids like Phymosoma lived on the seafloor and were occasionally buried quickly under fine sediment, leading to exceptional fossil preservation. Today, these fossil beds yield some of the finest echinoid specimens in Europe.

Fossil Type & Species:

Type: Fossil Echinoid (Regular Sea Urchin)

Genus: Phymosoma

Preservation: Very good, with detailed test and natural morphology

Features:

100% genuine, natural fossil specimen

Includes a Certificate of Authenticity

Hand-selected for its aesthetic and scientific value

The exact specimen pictured is the one you will receive

Scale cube = 1cm: See photo for accurate sizing

Why Buy From Us? We offer only authentic, professionally prepared fossils, carefully selected from trusted sources. Every specimen is accompanied by a Certificate of Authenticity, ensuring complete buyer confidence.

An excellent addition for collectors, fossil enthusiasts, educators, or as a one-of-a-kind natural decor piece.

[uk-fossils]

Phymosoma texanum Fossil Regular Echinoid Lower Cretaceous Texas USA Genuine Specimen

Now available is a genuine Phymosoma texanum fossil, a classic regular echinoid (sea urchin) from the Lower Cretaceous Period (approximately 145 to 100 million years ago). This specimen was collected from the well-known fossil-bearing formations of Texas, USA, which have long yielded some of the finest Cretaceous echinoids in North America.

Geology & Origin:

During the Lower Cretaceous, the region now known as Texas was part of a shallow inland sea teeming with marine life. Organisms like Phymosoma texanum thrived on the sea floor, and when they died, their hard exoskeletons (tests) were buried by sediment. Over millions of years, mineralization preserved them in exquisite detail, creating this highly collectible fossil.

Fossil Type & Species:

Type: Fossil Echinoid (Regular Sea Urchin)

Species: Phymosoma texanum

Preservation: Very good, with well-defined test and tubercles

Features:

100% genuine, natural fossil specimen

Comes with a Certificate of Authenticity

Professionally selected for its preservation quality and detail

The exact specimen shown in the listing photos

Scale cube = 1cm: Full sizing viewable in photo for accuracy

Why Buy From Us? We specialize in offering authentic, expertly curated fossils from around the world. Each fossil is carefully selected and includes a Certificate of Authenticity, ensuring your complete confidence in its origin and quality.

Perfect for collectors, educators, or as a striking piece of prehistoric marine life for home or office display.

[uk-fossils]

Pygaster Fossil Regular Echinoid Jurassic Dorset UK Genuine Specimen

Featured here is a genuine Pygaster fossil, a well-preserved example of a regular echinoid (sea urchin) from the Jurassic Period (approximately 201 to 145 million years ago). This specimen was sourced from the famous fossil beds of Dorset, UK, part of England's renowned Jurassic Coast.

Geology & Origin:

The Jurassic Coast of Dorset is a UNESCO World Heritage Site, known globally for its rich fossil record and accessible sedimentary layers. During the Jurassic, this area was submerged under a warm shallow sea, ideal for marine organisms such as echinoids. As these creatures died, they were quickly buried under sediment and fossilized in exceptional detail. The result is a rare and scientifically valuable fossil like this specimen of Pygaster.

Fossil Type & Species:

Type: Fossil Echinoid (Regular Sea Urchin)

Genus: Pygaster

Preservation: Very good, with detailed test and surface features

Features:

100% genuine, natural fossil specimen

Includes a Certificate of Authenticity

Hand-selected for display quality and geological importance

The exact fossil pictured is the one you will receive

Scale cube = 1cm: See photo for accurate sizing

Why Buy From Us? We provide only authentic, professionally prepared fossils that are carefully sourced and selected. Every specimen is accompanied by a Certificate of Authenticity, giving you complete peace of mind.

Ideal for collectors, educators, natural history enthusiasts, or as a unique decor piece that brings Earth’s ancient marine world into your space.

[uk-fossils]

Phymosoma magnificum Regular Echinoid Fossil, Campanian Stage, Cretaceous France | Authentic Specimen + COA

Phymosoma magnificum Regular Echinoid Fossil – Campanian Stage, Late Cretaceous, Talmont, Charente-Maritime, France

This striking fossil is a beautifully preserved specimen of Phymosoma magnificum, a regular echinoid (sea urchin) from the Campanian stage of the Late Cretaceous, approximately 83.6 to 72.1 million years ago. It was collected from the marine limestone beds around Talmont, located in the Charente-Maritime department of southwestern France—an area renowned for producing finely preserved Cretaceous invertebrate fossils.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid / Sea Urchin)

Species: Phymosoma magnificum

Phylum: Echinodermata

Class: Echinoidea

Order: Phymosomatoida (or Cidaroida, classification varies)

Family: Phymosomatidae

Described by: Agassiz, mid-19th century (genus authority)

Geological & Stratigraphic Details:

Location: Talmont-sur-Gironde, Charente-Maritime, France

Formation: Campanian marine chalk and marl beds

Geological Stage: Campanian (Late Cretaceous)

Age: ~83.6–72.1 million years ago

Biozone: Campanian echinoid-rich strata (specific subzone unassigned)

Depositional Environment: Shallow marine carbonate platform with quiet depositional conditions ideal for fossilisation of echinoderms and other invertebrates

Morphology & Features: This Phymosoma magnificum fossil displays:

Thick, rounded test (shell) with a symmetrical and slightly flattened shape

Prominent primary tubercles used for spine attachment, arranged in radiating rows

Deeply impressed ambulacral zones giving the shell a distinct petaloid appearance

Natural preservation in hues of beige, light brown, or pale grey

Often displays partial or associated spines and well-defined plate ornamentation

Notable: Phymosoma magnificum is one of the more ornate and well-known Cretaceous echinoid species from France. Its robust test, deeply impressed features, and balanced form make it both scientifically valuable and aesthetically striking. These fossils are often found in collections and museum exhibits focusing on Mesozoic marine invertebrates.

Specimen Details:

Origin: Talmont, Charente-Maritime, France

Species: Phymosoma magnificum

Fossil Type: Regular Echinoid / Sea Urchin Shell

Geological Stage: Campanian, Late Cretaceous

Size Reference: Scale rule square = 1cm (see listing photo for exact dimensions)

Note: You will receive the exact fossil specimen pictured

Authenticity & Quality: This fossil is 100% genuine, professionally verified, and selected for its completeness and natural appeal. It includes a Certificate of Authenticity. No restorations or enhancements applied.

Why Choose This Fossil? A perfect piece for:

Collectors of echinoids and Cretaceous fossils

Educational displays on marine palaeontology

Decorative natural history exhibits

Unique gifts for fossil enthusiasts and geologists

Shipping & Packaging: We use eco-conscious packaging and ship with full tracking and protection. Each fossil is carefully wrapped to ensure safe delivery.

Add an elegant and scientifically significant Cretaceous sea urchin to your collection with this stunning Phymosoma magnificum fossil from Talmont, France.

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

[uk-fossils]

Phymosoma magnificum Regular Echinoid Fossil, Campanian Stage, Cretaceous France | Authentic Specimen + COA

Phymosoma magnificum Regular Echinoid Fossil – Campanian Stage, Late Cretaceous, Talmont, Charente-Maritime, France

This striking fossil is a beautifully preserved specimen of Phymosoma magnificum, a regular echinoid (sea urchin) from the Campanian stage of the Late Cretaceous, approximately 83.6 to 72.1 million years ago. It was collected from the marine limestone beds around Talmont, located in the Charente-Maritime department of southwestern France—an area renowned for producing finely preserved Cretaceous invertebrate fossils.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid / Sea Urchin)

Species: Phymosoma magnificum

Phylum: Echinodermata

Class: Echinoidea

Order: Phymosomatoida (or Cidaroida, classification varies)

Family: Phymosomatidae

Described by: Agassiz, mid-19th century (genus authority)

Geological & Stratigraphic Details:

Location: Talmont-sur-Gironde, Charente-Maritime, France

Formation: Campanian marine chalk and marl beds

Geological Stage: Campanian (Late Cretaceous)

Age: ~83.6–72.1 million years ago

Biozone: Campanian echinoid-rich strata (specific subzone unassigned)

Depositional Environment: Shallow marine carbonate platform with quiet depositional conditions ideal for fossilisation of echinoderms and other invertebrates

Morphology & Features: This Phymosoma magnificum fossil displays:

Thick, rounded test (shell) with a symmetrical and slightly flattened shape

Prominent primary tubercles used for spine attachment, arranged in radiating rows

Deeply impressed ambulacral zones giving the shell a distinct petaloid appearance

Natural preservation in hues of beige, light brown, or pale grey

Often displays partial or associated spines and well-defined plate ornamentation

Notable: Phymosoma magnificum is one of the more ornate and well-known Cretaceous echinoid species from France. Its robust test, deeply impressed features, and balanced form make it both scientifically valuable and aesthetically striking. These fossils are often found in collections and museum exhibits focusing on Mesozoic marine invertebrates.

Specimen Details:

Origin: Talmont, Charente-Maritime, France

Species: Phymosoma magnificum

Fossil Type: Regular Echinoid / Sea Urchin Shell

Geological Stage: Campanian, Late Cretaceous

Size Reference: Scale rule square = 1cm (see listing photo for exact dimensions)

Note: You will receive the exact fossil specimen pictured

Authenticity & Quality: This fossil is 100% genuine, professionally verified, and selected for its completeness and natural appeal. It includes a Certificate of Authenticity. No restorations or enhancements applied.

Why Choose This Fossil? A perfect piece for:

Collectors of echinoids and Cretaceous fossils

Educational displays on marine palaeontology

Decorative natural history exhibits

Unique gifts for fossil enthusiasts and geologists

Shipping & Packaging: We use eco-conscious packaging and ship with full tracking and protection. Each fossil is carefully wrapped to ensure safe delivery.

Add an elegant and scientifically significant Cretaceous sea urchin to your collection with this stunning Phymosoma magnificum fossil from Talmont, France.

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

[uk-fossils]

Phymosoma magnificum Regular Echinoid Fossil, Campanian Stage, Cretaceous France | Authentic Specimen + COA

Phymosoma magnificum Regular Echinoid Fossil – Campanian Stage, Late Cretaceous, Talmont, Charente-Maritime, France

This striking fossil is a beautifully preserved specimen of Phymosoma magnificum, a regular echinoid (sea urchin) from the Campanian stage of the Late Cretaceous, approximately 83.6 to 72.1 million years ago. It was collected from the marine limestone beds around Talmont, located in the Charente-Maritime department of southwestern France—an area renowned for producing finely preserved Cretaceous invertebrate fossils.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid / Sea Urchin)

Species: Phymosoma magnificum

Phylum: Echinodermata

Class: Echinoidea

Order: Phymosomatoida (or Cidaroida, classification varies)

Family: Phymosomatidae

Described by: Agassiz, mid-19th century (genus authority)

Geological & Stratigraphic Details:

Location: Talmont-sur-Gironde, Charente-Maritime, France

Formation: Campanian marine chalk and marl beds

Geological Stage: Campanian (Late Cretaceous)

Age: ~83.6–72.1 million years ago

Biozone: Campanian echinoid-rich strata (specific subzone unassigned)

Depositional Environment: Shallow marine carbonate platform with quiet depositional conditions ideal for fossilisation of echinoderms and other invertebrates

Morphology & Features: This Phymosoma magnificum fossil displays:

Thick, rounded test (shell) with a symmetrical and slightly flattened shape

Prominent primary tubercles used for spine attachment, arranged in radiating rows

Deeply impressed ambulacral zones giving the shell a distinct petaloid appearance

Natural preservation in hues of beige, light brown, or pale grey

Often displays partial or associated spines and well-defined plate ornamentation

Notable: Phymosoma magnificum is one of the more ornate and well-known Cretaceous echinoid species from France. Its robust test, deeply impressed features, and balanced form make it both scientifically valuable and aesthetically striking. These fossils are often found in collections and museum exhibits focusing on Mesozoic marine invertebrates.

Specimen Details:

Origin: Talmont, Charente-Maritime, France

Species: Phymosoma magnificum

Fossil Type: Regular Echinoid / Sea Urchin Shell

Geological Stage: Campanian, Late Cretaceous

Size Reference: Scale rule square = 1cm (see listing photo for exact dimensions)

Note: You will receive the exact fossil specimen pictured

Authenticity & Quality: This fossil is 100% genuine, professionally verified, and selected for its completeness and natural appeal. It includes a Certificate of Authenticity. No restorations or enhancements applied.

Why Choose This Fossil? A perfect piece for:

Collectors of echinoids and Cretaceous fossils

Educational displays on marine palaeontology

Decorative natural history exhibits

Unique gifts for fossil enthusiasts and geologists

Shipping & Packaging: We use eco-conscious packaging and ship with full tracking and protection. Each fossil is carefully wrapped to ensure safe delivery.

Add an elegant and scientifically significant Cretaceous sea urchin to your collection with this stunning Phymosoma magnificum fossil from Talmont, France.

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

[uk-fossils]

Phymosoma magnificum Regular Echinoid Fossil, Campanian Stage, Cretaceous France | Authentic Specimen + COA

Phymosoma magnificum Regular Echinoid Fossil – Campanian Stage, Late Cretaceous, Talmont, Charente-Maritime, France

This striking fossil is a beautifully preserved specimen of Phymosoma magnificum, a regular echinoid (sea urchin) from the Campanian stage of the Late Cretaceous, approximately 83.6 to 72.1 million years ago. It was collected from the marine limestone beds around Talmont, located in the Charente-Maritime department of southwestern France—an area renowned for producing finely preserved Cretaceous invertebrate fossils.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid / Sea Urchin)

Species: Phymosoma magnificum

Phylum: Echinodermata

Class: Echinoidea

Order: Phymosomatoida (or Cidaroida, classification varies)

Family: Phymosomatidae

Described by: Agassiz, mid-19th century (genus authority)

Geological & Stratigraphic Details:

Location: Talmont-sur-Gironde, Charente-Maritime, France

Formation: Campanian marine chalk and marl beds

Geological Stage: Campanian (Late Cretaceous)

Age: ~83.6–72.1 million years ago

Biozone: Campanian echinoid-rich strata (specific subzone unassigned)

Depositional Environment: Shallow marine carbonate platform with quiet depositional conditions ideal for fossilisation of echinoderms and other invertebrates

Morphology & Features: This Phymosoma magnificum fossil displays:

Thick, rounded test (shell) with a symmetrical and slightly flattened shape

Prominent primary tubercles used for spine attachment, arranged in radiating rows

Deeply impressed ambulacral zones giving the shell a distinct petaloid appearance

Natural preservation in hues of beige, light brown, or pale grey

Often displays partial or associated spines and well-defined plate ornamentation

Notable: Phymosoma magnificum is one of the more ornate and well-known Cretaceous echinoid species from France. Its robust test, deeply impressed features, and balanced form make it both scientifically valuable and aesthetically striking. These fossils are often found in collections and museum exhibits focusing on Mesozoic marine invertebrates.

Specimen Details:

Origin: Talmont, Charente-Maritime, France

Species: Phymosoma magnificum

Fossil Type: Regular Echinoid / Sea Urchin Shell

Geological Stage: Campanian, Late Cretaceous

Size Reference: Scale rule square = 1cm (see listing photo for exact dimensions)

Note: You will receive the exact fossil specimen pictured

Authenticity & Quality: This fossil is 100% genuine, professionally verified, and selected for its completeness and natural appeal. It includes a Certificate of Authenticity. No restorations or enhancements applied.

Why Choose This Fossil? A perfect piece for:

Collectors of echinoids and Cretaceous fossils

Educational displays on marine palaeontology

Decorative natural history exhibits

Unique gifts for fossil enthusiasts and geologists

Shipping & Packaging: We use eco-conscious packaging and ship with full tracking and protection. Each fossil is carefully wrapped to ensure safe delivery.

Add an elegant and scientifically significant Cretaceous sea urchin to your collection with this stunning Phymosoma magnificum fossil from Talmont, France.

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

[uk-fossils]

Pseudodiadema depressum Regular Echinoid Fossil, Oxfordian Stage, Jurassic France | Authentic Specimen + COA

Pseudodiadema depressum Regular Echinoid Fossil – Oxfordian Stage, Late Jurassic, Cricqueboeuf, Normandy, France

This fine fossil specimen represents Pseudodiadema depressum, a regular echinoid (sea urchin) from the Oxfordian stage of the Late Jurassic, approximately 159 to 154 million years ago. It was recovered from the fossil-rich marine limestone beds of Cricqueboeuf, a renowned site in Normandy, northern France.

Fossil Type & Species:

Type: Invertebrate Fossil (Regular Echinoid / Sea Urchin)

Species: Pseudodiadema depressum

Phylum: Echinodermata

Class: Echinoidea

Order: Cidaroida

Superfamily: Pseudodiadematoidea

Family: Pseudodiadematidae

Described by: Cotteau, 1863

Geological & Stratigraphic Details:

Location: Cricqueboeuf, Calvados, Normandy, France

Formation: Oxfordian marine limestones

Geological Stage: Oxfordian (Upper Jurassic)

Age: ~159–154 million years ago

Biozone: Perisphinctes ammonite zone (regional correlation)

Depositional Environment: Shallow marine carbonate platform with calm, warm seas; ideal for the preservation of delicate echinoid shells in fine-grained limestones

Morphology & Features: This Pseudodiadema depressum specimen features:

Sub-hemispherical, symmetrical test with clear ambital outline

Densely arranged primary and secondary tubercles forming a detailed lattice across the shell

Well-developed ambulacral and interambulacral zones, sometimes showing fine pore structures

No spines attached, but tubercle structure suggests strong spine-bearing capability

Subtle colour variations from beige to pale brown, depending on matrix contact

Notable: Pseudodiadema depressum is a classic species of Jurassic echinoid used in palaeoenvironmental and biostratigraphic studies. Its compact test and distinctive tubercle patterning make it both scientifically important and visually appealing.

Specimen Details:

Origin: Cricqueboeuf, Normandy, France

Species: Pseudodiadema depressum

Fossil Type: Echinoid Shell (Regular Sea Urchin)

Geological Stage: Oxfordian, Late Jurassic

Size Reference: Scale rule square = 1cm (please refer to the listing photo for full size)

Note: You will receive the exact specimen shown in the photographs

Authenticity & Quality: All our fossils are genuine and professionally selected. This specimen includes a Certificate of Authenticity. No restorations or artificial enhancements are applied.

Why Choose This Fossil? Perfect for:

Fossil and echinoderm collectors

Academic and educational purposes

Natural history displays

Unique gifts with palaeontological value

Shipping & Packaging: Eco-conscious packaging and tracked global shipping ensure secure and swift delivery. Each fossil is packed with care to preserve detail and structure.

Own a finely preserved sea urchin from the Jurassic oceans of France with this authentic Pseudodiadema depressum echinoid fossil.

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

[uk-fossils]

Hyposalenia Regular Echinoid Fossil - Greensand, Cretaceous, Seaton Devon UK - Genuine Specimen with Certificate

This listing features a well-preserved Hyposalenia regular echinoid fossil, discovered on 24 March 2025 by our expert fossil hunting team Alister and Alison at Seaton, Devon, United Kingdom. This small and beautifully detailed sea urchin fossil has been expertly cleaned, prepped, and treated by Alison, ensuring excellent preservation and scientific integrity.

Hyposalenia is a genus of regular echinoids (sea urchins) from the Cretaceous period, typically found in Greensand deposits. These echinoids are characterised by their symmetrical, globular test and neatly arranged tubercles that once supported spines. They lived in shallow marine environments, contributing to the rich biodiversity of the Cretaceous seas.

The fossil pictured is the exact specimen you will receive, shown alongside a 1cm scale cube for accurate sizing.

Geological & Fossil Context:

Species: Hyposalenia sp. (Regular echinoid)

Type: Fossilised marine invertebrate (sea urchin)

Formation: Greensand

Location: Seaton, Devon, United Kingdom

Age: Cretaceous (~145–66 million years ago)

Fossil Features:

Preservation: Excellent, with complete shell and tubercle detail

Preparation: Professionally cleaned, stabilised, and treated by Alison

Condition: Ready for study, education, or display

Product Highlights:

100% Authentic Fossil Echinoid

Discovered and prepared by Alister & Alison

Supplied with a Certificate of Authenticity

Ideal for collectors, educators, or fossil enthusiasts

The Greensand deposits of Seaton are well known for yielding marine fossils, and this Hyposalenia echinoid is a rare and valuable example. Its beautiful symmetry and preservation make it both a scientifically significant and aesthetically pleasing addition to any collection.

Please consult the listing photos for full sizing and details. The specimen shown is the exact one you will receive.

Add this genuine Cretaceous echinoid to your fossil collection today with this exceptional Hyposalenia fossil from Devon.

[uk-fossils]

CLYPEUS MULLERI Fossil Echinoid Sea Urchin Jurassic Inferior Oolite Wiltshire UK Authentic Specimen

This listing features a beautifully preserved fossil echinoid (sea urchin) of the species Clypeus mulleri, discovered in the Inferior Oolite Formation of Wiltshire, UK. This authentic Jurassic marine fossil is accompanied by a Certificate of Authenticity, and the photograph shows the actual specimen you will receive.

Clypeus mulleri is a well-known echinoid species from the Middle Jurassic and is part of the:

Order: Clypeasteroida

Family: Clypeidae

This echinoid lived during the Bajocian Stage of the Middle Jurassic Period, around 170–168 million years ago. The Inferior Oolite represents shallow marine environments, including oolitic and bioclastic limestones deposited in a warm, tropical sea.

Fossils from the oolite beds of Wiltshire are prized for their fine preservation and historical importance, with Clypeus mulleri being among the most characteristic species.

Morphological Features:

Large, rounded disc-shaped test with a slight central elevation

Petaloid ambulacra forming a five-petaled pattern on the upper surface

Fine radial symmetry with a smooth or lightly ornamented surface

Central peristome (mouth area) on the underside, typical of regular echinoids

These echinoids likely lived on or slightly buried in the sea floor, using tube feet for feeding and respiration.

Specimen Details:

Species: Clypeus mulleri

Fossil Type: Echinoid (Sea Urchin) Test

Geological Unit: Inferior Oolite Formation

Geological Age: Middle Jurassic (Bajocian Stage)

Location: Wiltshire, United Kingdom

Depositional Environment: Shallow warm marine platform (oolitic limestone)

Family: Clypeidae

This is a genuine and attractive example of a classic British Jurassic echinoid, perfect for fossil collectors, educators, or natural history enthusiasts.

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

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

[uk-fossils]

Small Echinoid Fossil - Salenia prestensis - Cretaceous, Aptian, Morella Spain - Genuine Specimen with Certificate

This listing features a beautifully preserved small echinoid fossil of the species Salenia prestensis, sourced from the Aptian stage of the Cretaceous period in the Morella region, Castellón province, Spain. This genuine fossil showcases the characteristic features of this extinct sea urchin, offering both scientific value and aesthetic charm.

Salenia prestensis belonged to a genus of regular echinoids that lived during the Lower Cretaceous. These marine echinoderms are recognized by their spherical to slightly flattened tests, covered with tiny tubercles and spines in life. Fossils of this genus are relatively rare and sought after, particularly from the rich sedimentary beds of the Iberian Peninsula.

The exact fossil shown in the photographs is what you will receive, accompanied by a 1cm scale cube for sizing reference.

Geological & Fossil Context:

Species: Salenia prestensis (Regular Echinoid)

Type: Fossilised sea urchin (echinoderm)

Formation: Cretaceous marine limestone

Location: Morella, Castellón Province, Spain

Age: Aptian Stage, Lower Cretaceous (~125–113 million years ago)

Fossil Features:

Preservation: Excellent preservation of surface texture and overall form

Preparation: Carefully cleaned to reveal natural detail

Condition: 100% genuine and stable, suitable for display or study

Product Highlights:

Genuine Salenia prestensis echinoid fossil

Sourced from a classic Cretaceous locality in Spain

Includes a Certificate of Authenticity

An ideal piece for collectors, educators, or natural history enthusiasts

The Aptian marine deposits near Morella are well-known for producing high-quality fossils, and this echinoid is a perfect example of the biodiversity that flourished in Cretaceous seas. With its detailed morphology and historical significance, this fossil is both a decorative and educational treasure.

Please review all photos for size and detail. The item shown is the exact specimen you will receive.

Own a rare and exquisite Salenia prestensis echinoid fossil from Spain’s ancient seas.