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Fossil echinoid (sea urchin: micraster cortestudinarium) – chalk, cretaceous, downs near brighton, sussex, uk

£24.00

This listing features a well-preserved fossil echinoid (Micraster cortestudinarium), an extinct heart-shaped sea urchin from the Cretaceous chalk deposits of the Downs near Brighton, Sussex, UK. A scientifically valuable and highly collectible specimen, perfect for fossil enthusiasts, collectors, and educational purposes.

About Micraster cortestudinarium (Fossil Echinoid)

Micraster is a genus of extinct burrowing sea urchins that thrived during the Late Cretaceous period. These echinoids played a significant role in the study of marine paleoecology and biostratigraphy due to their well-defined stratigraphic distribution. Micraster cortestudinarium is recognized for its distinct heart shape and adaptations for burrowing in soft sedimentary environments.

Fossil Details:

  • Scientific Name: Micraster cortestudinarium
  • Common Name: Fossil Echinoid (Sea Urchin)
  • Geological Age: Cretaceous
  • Formation/Location: Chalk, Downs near Brighton, Sussex, UK
  • Size: Refer to listing photos for accurate dimensions
  • Condition: Well-preserved with fine structural details visible

Why This Fossil is Special:

  • A high-quality example of Micraster cortestudinarium from the iconic Chalk deposits
  • Sourced from a well-known UK fossil locality near Brighton
  • Ideal for fossil displays, educational purposes, or research
  • Comes from the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world
  • 100% Genuine Specimen with a Certificate of Authenticity

What You See is What You Get

The fossil shown in the photos is the exact specimen you will receive—no stock images used.

Buy with Confidence:

  • Authenticity Guaranteed – Professionally sourced, identified, and verified
  • Secure Packaging – Carefully packed for safe shipping
  • Fast & Reliable Shipping – Worldwide shipping available

This Micraster cortestudinarium fossil is a fascinating piece of natural history, providing a glimpse into the marine ecosystems of the Late Cretaceous period. A perfect addition to any serious fossil collection.

(Actual as seen)

Out of stock

SKU: AF0303 Category:

Description

This listing features a well-preserved fossil echinoid (Micraster cortestudinarium), an extinct heart-shaped sea urchin from the Cretaceous chalk deposits of the Downs near Brighton, Sussex, UK. A scientifically valuable and highly collectible specimen, perfect for fossil enthusiasts, collectors, and educational purposes.

About Micraster cortestudinarium (Fossil Echinoid)

Micraster is a genus of extinct burrowing sea urchins that thrived during the Late Cretaceous period. These echinoids played a significant role in the study of marine paleoecology and biostratigraphy due to their well-defined stratigraphic distribution. Micraster cortestudinarium is recognized for its distinct heart shape and adaptations for burrowing in soft sedimentary environments.

Fossil Details:

  • Scientific Name: Micraster cortestudinarium
  • Common Name: Fossil Echinoid (Sea Urchin)
  • Geological Age: Cretaceous
  • Formation/Location: Chalk, Downs near Brighton, Sussex, UK
  • Size: Refer to listing photos for accurate dimensions
  • Condition: Well-preserved with fine structural details visible

Why This Fossil is Special:

  • A high-quality example of Micraster cortestudinarium from the iconic Chalk deposits
  • Sourced from a well-known UK fossil locality near Brighton
  • Ideal for fossil displays, educational purposes, or research
  • Comes from the Alice Purnell Collection, one of the largest ammonite and fossil collections in the world
  • 100% Genuine Specimen with a Certificate of Authenticity

What You See is What You Get

The fossil shown in the photos is the exact specimen you will receive—no stock images used.

Buy with Confidence:

  • Authenticity Guaranteed – Professionally sourced, identified, and verified
  • Secure Packaging – Carefully packed for safe shipping
  • Fast & Reliable Shipping – Worldwide shipping available

This Micraster cortestudinarium fossil is a fascinating piece of natural history, providing a glimpse into the marine ecosystems of the Late Cretaceous period. A perfect addition to any serious fossil collection.

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm
Era

Cretaceous

Origin

United Kingdom

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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