Description
This listing features a beautifully preserved Micraster coranguinum fossil echinoid, found encased in flint from the Gravel Beds of Small Dole, Sussex, United Kingdom. The specimen is displayed with a 1cm scale cube for accurate size reference. Please see the photo for the exact specimen you will receive.
Micraster coranguinum is a classic and well-known species of fossil echinoid (sea urchin) from the Late Cretaceous period. It is distinguished by its distinct heart-shaped profile and fine ambulacral grooves. This particular specimen is preserved within flint, a hard, silica-rich sediment formed in marine chalk deposits.
Geological & Palaeontological Information:
- Species: Micraster coranguinum
- Type: Fossil Echinoid (Sea Urchin)
- Geological Age: Late Cretaceous (Santonian–Campanian)
- Location: Small Dole, Sussex, UK
- Formation: Gravel Beds (derived from Chalk Formation)
- Preservation: In flint nodule
- Family: Spatangidae
- Order: Spatangoida
- Class: Echinoidea
- Morphology Features: Heart-shaped test, sunken petaloid ambulacra, symmetrical form, flattened base
- Depositional Environment: Shallow marine chalk sea; flint formed by post-depositional silica replacement of carbonate sediments
- Notable: Iconic British fossil used as a biostratigraphic marker in the Upper Chalk
- Biozone: Micraster coranguinum Zone (Late Cretaceous)
- Formally Described By: Jean-Baptiste de Lamarck (1816)
Why Buy From Us?
- All fossils are 100% genuine specimens
- Accompanied by a Certificate of Authenticity
- What you see is what you get – you receive the exact fossil shown
- Expertly sourced and professionally handled
This Micraster echinoid offers a beautiful and historically significant piece from Britain’s fossil-rich chalk deposits. It’s ideal for collectors, educators, or as a natural history display piece.
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