Cotham Marble Stromatolite Fossil Section – Triassic Age from Bristol, UK – Rare Cyanobacteria Formation – Certificate Included

Description This listing features a genuine Stromatolite fossil section cut and polished from the famous Cotham Marble, a distinctive limestone formation from the Late Triassic Period (~201–205 million years ago). This rare specimen was found in Bristol, UK, a site renowned for its exceptional preservation of prehistoric microbial structures. Stromatolites are layered structures formed by the growth of cyanobacteria—among the earliest life forms on Earth. These microorganisms formed sticky mats that trapped sediment, slowly building up layered structures over time. Fossils such as this provide an extraordinary window into ancient microbial life and Earth’s early biosphere. The Cotham Marble is not a true marble but a highly decorative limestone known for its unique patterning. These patterns represent fossilised algal mats that developed in a shallow lagoonal environment during the late Triassic. It has long fascinated both geologists and fossil collectors alike, as it preserves some of the clearest examples of early microbial ecosystems. The surface has been polished to enhance visibility of the fine banding and layering, making this piece not only a valuable scientific specimen but also an aesthetically striking display item. Item Details: Specimen: Stromatolite Fossil Section Formation: Cotham Marble Age: Late Triassic Period (~201–205 million years ago) Location: Bristol, UK Scale Reference: Scale cube = 1cm. Please refer to photos for full sizing. Certificate of Authenticity: Included ACTUAL AS SEEN: The image shows the exact specimen you will receive. Each fossil is individually selected and professionally photographed to ensure you get the precise item as described. Please Note: Some fossils may be gently propped for photography purposes. Size and colouration may vary slightly depending on lighting conditions and monitor settings. Once sold, this listing will be updated with a new similar item. We recommend saving or screenshotting your purchase image for personal reference, as listings refresh with each new specimen. All images are archived for verification. 100% Genuine Fossil – Professionally Selected – Certificate of Authenticity Included