RARE Isastrea explanata Fossil Coral Great Oolite Jurassic Gloucestershire UK Display Specimen

Description

This rare and well-preserved specimen of Isastrea explanata is a stunning fossil coral from the Great Oolite Group, Jurassic period, discovered in Gloucestershire, UK. Dated to the Bathonian stage (Middle Jurassic), this colonial coral is approximately 166–168 million years old and serves as a fascinating window into the shallow tropical seas that once covered what is now southern England.

Isastrea is a genus of extinct colonial stony corals known for forming dome-like or mound-shaped colonies. The species I. explanata exhibits neatly arranged, star-like corallites with visible septal structures that indicate its scleractinian lineage. These coral colonies were essential reef builders during the Jurassic and are often found within fine-grained oolitic limestones.

The photo shows the exact specimen you will receive. Scale cube/squares = 1cm for accurate sizing. The fossil has been carefully selected for its scientific and aesthetic qualities and is ideal for collectors, display, or educational use.

Scientific & Geological Information:

• Species: Isastrea explanata
• Family: Latomeandridae
• Order: Scleractinia (Stony Corals)
• Class: Anthozoa
• Phylum: Cnidaria
• Geological Stage: Bathonian (Middle Jurassic)
• Formation: Great Oolite Group
• Location: Gloucestershire, United Kingdom
• Age: Approx. 166–168 million years
• Depositional Environment: Shallow, warm marine carbonate platform; reef-associated oolitic limestone
• Morphology Features: Colonial structure with polygonal corallites, radial septa, and preserved calices; growth indicative of calm, shallow water reef systems

Why This Specimen Stands Out:

• Rare Jurassic coral with detailed preservation
• Beautiful colonial structure and visible corallites
• Sourced from a classic UK fossil formation
• Perfect for collectors and educational display
• Comes with a Certificate of Authenticity

Shipping & Packaging:

• Carefully wrapped and securely boxed
• Worldwide tracked and insured delivery offered

This Isastrea explanata coral is not only a beautiful natural specimen but also a valuable piece of Earth’s paleontological heritage.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.