Ichthyosaur Vertebra Fossil Jurassic Lyme Regis Dorset UK Lower Lias Black Ven

Description

Authentic Ichthyosaur Vertebra from the Jurassic Coast

Presented here is a genuine Ichthyosaur fossil reptile vertebra recovered from the renowned Black Ven Marls, Black Ven, Charmouth, Lyme Regis, Dorset, on England’s world-famous Jurassic Coast. This carefully chosen specimen preserves a well-defined vertebral centrum that clearly represents the powerful spinal anatomy of one of the most iconic marine reptiles of the Jurassic seas. The photographs show the exact fossil you will receive, and full sizing details are provided in the photos for complete transparency.

This fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card, ensuring confidence in provenance and long-term 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 are composed of fine-grained marine mudstones and marls laid down in a shallow epicontinental sea that once covered much of southern Britain. These deposits are internationally important for their abundance of marine reptile remains and have contributed significantly to our understanding of Early Jurassic marine ecosystems.

Fossil Type and Species Context

Ichthyosaurs were highly specialised marine reptiles belonging to the Order Ichthyosauria, adapted for fast, efficient swimming in open seas. With streamlined bodies, powerful tails, and flexible spines, they filled an ecological role similar to modern dolphins. Vertebrae are among the most informative skeletal elements, as they reveal details of body size, spinal flexibility, and locomotion. Fossil ichthyosaur vertebrae from the Lower Lias are classic British specimens and remain highly sought after by collectors and educators.

Morphology and Notable Features

This specimen displays the characteristic short, disk-shaped vertebral centrum typical of ichthyosaurs, designed to provide strength while allowing flexibility through the spinal column. The articular surfaces are clearly defined, and the overall proportions reflect adaptation to powerful lateral movement during swimming. Natural mineralisation has enhanced durability while preserving surface texture and anatomical detail. The three-dimensional preservation allows the form and structure of the vertebra to be clearly appreciated from multiple angles.

Depositional Environment

During the Early Jurassic, the Charmouth and Lyme Regis region 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. Periodic low-oxygen conditions reduced scavenging and decay, contributing to the preservation of isolated skeletal elements such as vertebrae. These conditions explain the remarkable concentration of ichthyosaur material within the Black Ven Marls.

Collecting, Display, and Educational Value

This Ichthyosaur vertebra fossil is ideal for private fossil collections, educational use, museum displays, or refined interior presentation. Its classic British Jurassic provenance, clear anatomical identification, and well-documented geological context make it both scientifically informative and visually compelling. Ichthyosaur fossils from Lyme Regis are historically significant and increasingly scarce, making them enduringly popular with collectors worldwide. 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 localities.