British Chalk Fossil Echinoid – Echinocorys scutata tectiformis – Cretaceous, Birling Gap UK

Description

Offered here is a superb example of a British Chalk Fossil Echinoid, specifically Echinocorys scutata tectiformis, from the Middle Chalk Formation of the Cretaceous Period. This particular specimen was found at the iconic fossil locality of Birling Gap, Sussex, UK—a well-known section of the southern chalk cliffs of England.

Taxonomic Classification:

• Order: Holasteroida
• Superfamily: Echinocorythoidea
• Family: Echinocorythidae
• Genus & Species: Echinocorys scutata tectiformis

Geological Context:

• Period: Cretaceous
• Stage: Coniacian to Early Campanian
• Formation: Middle Chalk
• Depositional Environment: Calm, shallow marine shelf. The chalk was deposited in warm, lime-rich seas during the Late Cretaceous, forming thick beds of pure calcium carbonate with abundant microfossils and echinoids.

Morphological Features:

• Sub-pyramidal to tent-shaped test (shell), a distinguishing feature of the tectiformis form
• Bilaterally symmetrical with a flattened base and raised apex
• Strong development of interambulacral plates with granular tubercles
• Marked periproct and peristome regions
• Adapted for infaunal life, often partially buried in the chalk mud substrate

Notable & Scientific Significance:

• Echinocorys scutata tectiformis is a notable morphotype that reflects ecological adaptations within the Echinocorys lineage.
• These echinoids are important for biostratigraphy within the Chalk and are often used to help date layers and interpret depositional conditions.

Locality Details:

• Location: Birling Gap, near Eastbourne, Sussex, UK
• Stratigraphy: Part of the Seaford Chalk Formation within the White Chalk Subgroup, which is richly fossiliferous and provides excellent preservation of echinoderm fauna.

Presentation & Authenticity:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The listing shows images of the actual fossil you will receive. The scale rule squares / cube = 1cm. Full sizing details can be seen in the accompanying photograph.

This is a hand-selected piece, chosen for its preservation, form, and scientific relevance. Ideal for fossil collectors, chalk enthusiasts, educational displays, or anyone interested in Britain’s geological past.

Bring a piece of the Cretaceous seabed into your collection today!