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Fossil Sponge in Flint, Cretaceous Grey Chalk Subgroup, Branscombe Dorset Fossil Specimen, Genuine Certificate

Original price was: £8.40.Current price is: £6.72.

Discover a rare and fascinating Fossil Sponge preserved in Flint, found within the Grey Chalk Subgroup of the Cretaceous period, from the historic coastal region of Branscombe, Dorset, UK. This specimen is 100% genuine, comes with a Certificate of Authenticity, and was discovered by our own team members, Alister and Alison, on 20 March 2025. It has been carefully cleaned, prepped, and treated by Alison, ensuring both scientific value and visual appeal.

Sponges are one of the oldest multicellular life forms on Earth, and fossil examples provide invaluable insight into early marine ecosystems. This particular fossil dates back to the Late Cretaceous, approximately 85–100 million years ago, when the region that is now Dorset was submerged under warm, shallow seas. The Grey Chalk Subgroup, part of the Upper Cretaceous sedimentary layers, is known for preserving marine fossils in flint nodules formed within chalk beds.

This beautifully preserved specimen captures the structure and texture of an ancient sponge, preserved through mineral replacement within a durable flint matrix. Fossils like this are sought after by collectors and geologists alike for their rarity and educational value.

This is a carefully selected, one-of-a-kind specimen, and the exact fossil shown in the listing photos is the one you will receive. A 1cm scale cube is included in the images for size reference—please refer to the photos for full dimensions.

Why Choose This Fossil? ✔️ Authentic Cretaceous Fossil Sponge in Flint from Branscombe, Dorset, UK

✔️ Discovered by Our Team – Alister and Alison – on 20 March 2025

✔️ Professionally Cleaned, Prepped, and Treated by Alison

✔️ 100% Genuine with Certificate of Authenticity

✔️ Perfect for Collectors, Educators, and Natural History Displays

✔️ Exact Fossil Shown – No Substitutes

✔️ Fast & Secure Shipping

Add a rare glimpse of Britain’s ancient marine life to your collection—order this unique Fossil Sponge in Flint today!

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Description

Fossil Sponge in Flint from Branscombe, Dorset

This genuine fossil specimen is identified as a Fossil Sponge in Flint from the Grey Chalk Subgroup of the Cretaceous, collected at Branscombe in Dorset. It is an appealing piece of British geological history for fossil collectors, natural history enthusiasts, geology students and anyone interested in the ancient marine environments represented by the Cretaceous rocks of southern England

Geological Setting

The Grey Chalk Subgroup forms part of the Cretaceous chalk succession. Chalk was deposited in a marine environment, and the Cretaceous seas that covered parts of what is now southern England supported a wide range of life. Flint occurs within chalk and is a hard, silica-rich material that can preserve fossil remains and impressions. In this specimen, the fossil sponge is preserved in flint, creating a durable geological display piece with a direct connection to the chalk landscapes of Dorset.

Fossil Sponge Interest

Sponges are simple aquatic animals that have existed in marine environments for a very long time. Their fossilised remains can provide an insight into ancient seabed communities and the conditions in which chalk and associated flint formed. Fossil sponge specimens are particularly valued for their connection with Cretaceous marine geology and for the way they link an identifiable fossil organism with the surrounding host rock.

This specimen is suitable for a private fossil collection, educational handling, a geology cabinet, museum-style display or as a thoughtful gift for someone fascinated by palaeontology and Dorset’s fossil heritage. Its named geological context makes it more informative than an unlocalised fossil and helps place the specimen within the wider story of Cretaceous Britain.

Specimen Preparation and Collection

Your specimen was discovered by our own team members, Alister and Alison, and has been cleaned, prepped and treated by Alison.

The preparation has been carried out to present the fossil clearly while retaining its natural geological character. As with all natural fossils, the surface, preservation and form reflect the processes of burial, mineralisation and preparation that affected the specimen over geological time.

Photograph and Sizing Information

The photograph shows the actual specimen you will receive.

Full sizing is shown in the photographs.

Please study the images carefully for the overall appearance and presentation of this individual fossil specimen. The photographs are intended to show the actual piece supplied rather than a representative example.

Authenticity and Certificate

This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.

The included certificate wording provides an accompanying authenticity statement for this genuine fossil specimen. It makes this piece a suitable addition to a documented collection or a geology-themed display, while the stated Cretaceous Grey Chalk Subgroup and Branscombe, Dorset identification provide its geological context.

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