Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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RARE Hemicidaris intermedia Fossil Echinoid – Upper Jurassic – Dorset, UK – Genuine with Certificate

£36.00

This listing features a rare Hemicidaris intermedia fossil echinoid, a highly sought-after species from the Upper Jurassic period, discovered in Dorset, United Kingdom. A prime example of its kind, this fossil exhibits beautiful preservation and detail, making it a remarkable piece for collectors, educators, or anyone with a passion for natural history. You will receive the exact specimen shown in the photos. Please refer to the scale cube (1cm) for full sizing.

Species & Classification:

  • Species: Hemicidaris intermedia
  • Type: Fossil Echinoid (Sea Urchin)
  • Order: Cidaroida
  • Family: Hemicidaridae
  • Phylum: Echinodermata

Geological & Stratigraphic Context:

  • Period: Jurassic
  • Stage: Upper Jurassic (likely Kimmeridgian or Oxfordian)
  • Locality: Dorset, England, UK
  • Depositional Environment: Shallow marine carbonate platform; warm subtropical seas rich in benthic marine life

Morphological Features:

  • Distinctive thick test (shell) with robust tubercles for spine attachment
  • Regular arrangement of ambulacral and interambulacral plates
  • Globular, heavily calcified structure typical of Cidaroid echinoids
  • Adapted for hard-substrate or reef-associated environments

Notable Facts:

  • Hemicidaris intermedia is an important biostratigraphic indicator and relatively rare compared to other Jurassic echinoids.
  • Its sturdy structure and aesthetic symmetry make it a favourite among fossil collectors.
  • The genus Hemicidaris was first described in the 19th century and is significant for understanding echinoid evolution during the Mesozoic.

Why Buy From Us?

  • 100% authentic fossil, responsibly sourced
  • Comes with a Certificate of Authenticity
  • You will receive the actual fossil depicted in the images
  • Carefully chosen for scientific interest, quality, and display value

This Hemicidaris intermedia fossil echinoid offers a rare chance to own a piece of Jurassic marine history from one of the UK’s most fossiliferous regions. A true collector’s piece with great educational and display appeal!

(Actual as seen)

Out of stock

SKU: SF0441 Category:

Description

This listing features a rare Hemicidaris intermedia fossil echinoid, a highly sought-after species from the Upper Jurassic period, discovered in Dorset, United Kingdom. A prime example of its kind, this fossil exhibits beautiful preservation and detail, making it a remarkable piece for collectors, educators, or anyone with a passion for natural history. You will receive the exact specimen shown in the photos. Please refer to the scale cube (1cm) for full sizing.

Species & Classification:

  • Species: Hemicidaris intermedia
  • Type: Fossil Echinoid (Sea Urchin)
  • Order: Cidaroida
  • Family: Hemicidaridae
  • Phylum: Echinodermata

Geological & Stratigraphic Context:

  • Period: Jurassic
  • Stage: Upper Jurassic (likely Kimmeridgian or Oxfordian)
  • Locality: Dorset, England, UK
  • Depositional Environment: Shallow marine carbonate platform; warm subtropical seas rich in benthic marine life

Morphological Features:

  • Distinctive thick test (shell) with robust tubercles for spine attachment
  • Regular arrangement of ambulacral and interambulacral plates
  • Globular, heavily calcified structure typical of Cidaroid echinoids
  • Adapted for hard-substrate or reef-associated environments

Notable Facts:

  • Hemicidaris intermedia is an important biostratigraphic indicator and relatively rare compared to other Jurassic echinoids.
  • Its sturdy structure and aesthetic symmetry make it a favourite among fossil collectors.
  • The genus Hemicidaris was first described in the 19th century and is significant for understanding echinoid evolution during the Mesozoic.

Why Buy From Us?

  • 100% authentic fossil, responsibly sourced
  • Comes with a Certificate of Authenticity
  • You will receive the actual fossil depicted in the images
  • Carefully chosen for scientific interest, quality, and display value

This Hemicidaris intermedia fossil echinoid offers a rare chance to own a piece of Jurassic marine history from one of the UK’s most fossiliferous regions. A true collector’s piece with great educational and display appeal!

Additional information

Era

Jurassic

Origin

United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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