This is a genuine Ichthyosaur rib bone fossil, discovered in the famous Black Ven Marls of the Lower Lias Formation, Lyme Regis, Dorset, UK. It dates back to the Early Jurassic period (~200 million years ago), a time when the seas were dominated by marine reptiles.

Ichthyosaurs were highly adapted marine predators, resembling modern dolphins but belonging to an extinct group of Mesozoic reptiles. They had elongated, streamlined bodies, large eyes for deep-sea hunting, and a powerful tail for swift movement. These animals ruled the ancient seas, preying on fish, cephalopods, and other marine creatures.

Geological Information:

• Species: Ichthyosaur (Order: Ichthyosauria)
• Fossil Type: Rib Bone
• Formation: Black Ven Marls, Lower Lias
• Age: Lower Jurassic (~200 million years ago)
• Location: Black Ven, Lyme Regis, Dorset, UK
• Depositional Environment: Shallow marine seas

Fossil Features:

✔ Authentic Ichthyosaur rib fossil, exceptionally preserved

✔ From the Jurassic Coast, a UNESCO World Heritage site

✔ Found in the historic fossil beds of Lyme Regis, famously associated with Mary Anning

✔ A must-have specimen for collectors, educators, and fossil enthusiasts

Additional Information:

All fossils are 100% genuine specimens and come with a Certificate of Authenticity. Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.

This Ichthyosaur rib fossil is a stunning piece of natural history, perfect for fossil collections, museums, and educational displays. Own a real marine reptile fossil from the iconic Jurassic Coast of England!