Ichthyosaur Vertebra Fossil in Matrix Jurassic Lyme Regis Dorset UK Lower Lias

Description

Genuine Ichthyosaur Vertebra Preserved in Matrix from the Jurassic Coast

Offered here is a genuine Ichthyosaur fossil reptile vertebra preserved in its original matrix, collected from the renowned Black Ven Marls, Black Ven, Charmouth, Lyme Regis, Dorset, along England’s world-famous Jurassic Coast. This specimen has been carefully chosen to retain both anatomical clarity and geological context, with the surrounding sediment enhancing authenticity and scientific value. The photographs show the exact fossil you will receive, and full sizing details are clearly shown in the photos.

This fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card, ensuring long-term confidence in provenance and collectability.

Geological Formation and Age

This vertebra originates from the Lower Lias Group, deposited during the Early Jurassic Period, approximately 199–191 million years ago, within the Sinemurian Stage. The Black Ven Marls consist of fine-grained marine mudstones and marls formed in a shallow epicontinental sea that once covered southern Britain. These deposits are internationally significant for their abundance of marine reptiles and have played a central role in the history of palaeontological research along the Dorset coast.

Fossil Type and Species Context

Ichthyosaurs were highly specialised marine reptiles belonging to the Order Ichthyosauria, superbly adapted for life in open oceans. With streamlined bodies, powerful tails, and flexible spines, they occupied a role similar to modern dolphins. Vertebrae are among the most diagnostic skeletal elements, providing insight into body size, locomotion, and spinal mechanics. Fossil ichthyosaur vertebrae from the Lower Lias are classic British specimens and remain highly sought after by collectors and educators worldwide.

Morphology and Notable Features

This specimen preserves a short, disk-shaped vertebral centrum, a defining feature of ichthyosaur anatomy that allowed both strength and flexibility along the spine. The articular surfaces are clearly defined, and the proportions reflect adaptation to powerful lateral movement during swimming. Preservation within the original matrix protects the fossil and clearly demonstrates its geological origin, offering a more complete picture of how the bone was embedded within Jurassic sediments. Natural mineralisation enhances durability while retaining surface texture and anatomical detail.

Depositional Environment

During the Early Jurassic, the Charmouth and Lyme Regis area lay beneath a warm, shallow marine environment rich in ammonites, belemnites, fish, and marine reptiles. Fine sediments settled slowly on the sea floor, allowing vertebrate remains to be buried before significant disturbance occurred. Periodic low-oxygen conditions reduced scavenging and decay, contributing to the preservation of isolated bones such as vertebrae within the Black Ven Marls. These conditions explain the exceptional quality and abundance of ichthyosaur material from this locality.

Collecting, Display, and Educational Value

This Ichthyosaur vertebra fossil in matrix is ideal for private fossil collections, educational use, museum displays, or refined interior presentation. The retention of surrounding sediment adds scientific integrity and visual interest, making it an excellent teaching specimen for illustrating fossil preservation and marine reptile anatomy. Ichthyosaur fossils from Lyme Regis are historically significant and increasingly scarce, particularly well-preserved examples in matrix. Each specimen we offer is individually selected to ensure you receive an authentic and carefully curated piece of Early Jurassic marine reptile history from one of the world’s most important fossil coastlines.