HOLECTYPUS DEPRESSUS Fossil Echinoid Sea Urchin Jurassic Cornbrash Somerset UK Authentic Specimen
£ 36.00
This listing features a well-preserved fossil echinoid (sea urchin) of the
species Holectypus depressus, collected from the Cornbrash Formation in Somerset, United Kingdom. This authentic Jurassic marine invertebrate fossil is provided with a Certificate of Authenticity, and the photo shows the exact specimen you will receiveHolectypus depressus belongs to:
• Order: Holectypoida
• Family: HolectypidaeThis echinoid lived during the Bathonian Stage of the Middle Jurassic Period, approximately 168–166 million years ago. The Cornbrash Formation consists of marine shelly limestones and mudstones deposited in a shallow marine, inner shelf environment that supported a diverse array of invertebrate life. MORPHOLOGICAL FEATURES:
• Flattened, oval test (shell) with a low dome profile
• Petaloid ambulacra with finely impressed pore pairs
• Oral surface flattened with distinct peristome
• Smooth to lightly granulated surface, often symmetricalThese features suggest an infaunal or semi-infaunal lifestyle, with the organism likely burrowing or living on soft marine sediments. SPECIMEN DETAILS:
• Species: Holectypus depressus
• Fossil Type: Echinoid (Sea Urchin) Test
• Geological Unit: Cornbrash Formation
• Geological Age: Middle Jurassic (Bathonian Stage)
• Location: Somerset, United Kingdom
• Depositional Environment: Shallow marine shelf, calcareous muds and shelly limestones
• Family: HolectypidaeThis is a fine example of a Jurassic echinoid fossil from a historically significant geological unit in the UK, ideal for fossil collectors, educators, or anyone with a passion for ancient marine life.Scale rule squares/cube = 1cm. Please see the photograph for full sizing and condition.All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
species Holectypus depressus, collected from the Cornbrash Formation in Somerset, United Kingdom. This authentic Jurassic marine invertebrate fossil is provided with a Certificate of Authenticity, and the photo shows the exact specimen you will receiveHolectypus depressus belongs to:
• Order: Holectypoida
• Family: HolectypidaeThis echinoid lived during the Bathonian Stage of the Middle Jurassic Period, approximately 168–166 million years ago. The Cornbrash Formation consists of marine shelly limestones and mudstones deposited in a shallow marine, inner shelf environment that supported a diverse array of invertebrate life. MORPHOLOGICAL FEATURES:
• Flattened, oval test (shell) with a low dome profile
• Petaloid ambulacra with finely impressed pore pairs
• Oral surface flattened with distinct peristome
• Smooth to lightly granulated surface, often symmetricalThese features suggest an infaunal or semi-infaunal lifestyle, with the organism likely burrowing or living on soft marine sediments. SPECIMEN DETAILS:
• Species: Holectypus depressus
• Fossil Type: Echinoid (Sea Urchin) Test
• Geological Unit: Cornbrash Formation
• Geological Age: Middle Jurassic (Bathonian Stage)
• Location: Somerset, United Kingdom
• Depositional Environment: Shallow marine shelf, calcareous muds and shelly limestones
• Family: HolectypidaeThis is a fine example of a Jurassic echinoid fossil from a historically significant geological unit in the UK, ideal for fossil collectors, educators, or anyone with a passion for ancient marine life.Scale rule squares/cube = 1cm. Please see the photograph for full sizing and condition.All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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