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Holaster subglobosus Fossil Echinoid – Cretaceous Chalk Marl – Isle of Wight UK – Certified Specimen
£12.60
This listing features a genuine Holaster subglobosus fossil echinoid from the Cretaceous period, collected from the Chalk Marl formations of the Isle of Wight, United Kingdom. This striking sea urchin fossil showcases classic preservation within chalky matrix material, and is an excellent example of the species.
A scale cube is provided in the photo for reference (1cm per square). Please see the images for complete sizing. The item shown is the exact specimen you will receive.
Species & Classification:
- Species: Holaster subglobosus
- Type: Fossil Echinoid (Sea Urchin)
- Family: Holasteridae
- Order: Holasteroida
- Class: Echinoidea
- Phylum: Echinodermata
Geological & Stratigraphic Context:
- Formation: Chalk Marl (Lower part of the Chalk Group)
- Geological Stage: Upper Cretaceous (Cenomanian stage)
- Age: Approx. 100–94 million years ago
- Location: Isle of Wight, UK
- Depositional Environment: Soft marine chalk sediment deposited in a low-energy, deepening shelf environment typical of the Cretaceous epicontinental seas in Europe.
Morphological Features:
- Subglobular (nearly spherical) test with distinct bilateral symmetry
- Moderately inflated dorsal side, with a sunken periproct (anus) near the posterior
- Adapted for burrowing in fine marine sediment, with reduced spines
- Ambulacral and interambulacral plates clearly visible
Notable Facts:
- Holaster subglobosus is a key biostratigraphic fossil used to correlate marine Chalk formations across Europe.
- Their preservation within chalk marl makes them highly collectable and visually appealing.
- The species was first described by Mantell in 1822.
Why Buy From Us?
- All fossils are 100% genuine specimens
- Supplied with a Certificate of Authenticity
- The specimen in the photo is the one you will receive
- Ethically sourced, selected for quality, clarity, and completeness
This Holaster echinoid is a stunning and scientifically significant fossil—perfect for collectors, educators, or as a unique natural display piece. A true relic from the marine world of the Cretaceous seas of Britain.
(Actual as seen)
Out of stock
Description
This listing features a genuine Holaster subglobosus fossil echinoid from the Cretaceous period, collected from the Chalk Marl formations of the Isle of Wight, United Kingdom. This striking sea urchin fossil showcases classic preservation within chalky matrix material, and is an excellent example of the species.
A scale cube is provided in the photo for reference (1cm per square). Please see the images for complete sizing. The item shown is the exact specimen you will receive.
Species & Classification:
- Species: Holaster subglobosus
- Type: Fossil Echinoid (Sea Urchin)
- Family: Holasteridae
- Order: Holasteroida
- Class: Echinoidea
- Phylum: Echinodermata
Geological & Stratigraphic Context:
- Formation: Chalk Marl (Lower part of the Chalk Group)
- Geological Stage: Upper Cretaceous (Cenomanian stage)
- Age: Approx. 100–94 million years ago
- Location: Isle of Wight, UK
- Depositional Environment: Soft marine chalk sediment deposited in a low-energy, deepening shelf environment typical of the Cretaceous epicontinental seas in Europe.
Morphological Features:
- Subglobular (nearly spherical) test with distinct bilateral symmetry
- Moderately inflated dorsal side, with a sunken periproct (anus) near the posterior
- Adapted for burrowing in fine marine sediment, with reduced spines
- Ambulacral and interambulacral plates clearly visible
Notable Facts:
- Holaster subglobosus is a key biostratigraphic fossil used to correlate marine Chalk formations across Europe.
- Their preservation within chalk marl makes them highly collectable and visually appealing.
- The species was first described by Mantell in 1822.
Why Buy From Us?
- All fossils are 100% genuine specimens
- Supplied with a Certificate of Authenticity
- The specimen in the photo is the one you will receive
- Ethically sourced, selected for quality, clarity, and completeness
This Holaster echinoid is a stunning and scientifically significant fossil—perfect for collectors, educators, or as a unique natural display piece. A true relic from the marine world of the Cretaceous seas of Britain.
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