This Specimen has been sold.
3.8" Ichthyosaurus (Brachypterigus) Vertebrae - England
This is a rare vertebrae from the Ichthyosaurus, Brachypterigus cf. extremis. The bone comes from the Middle Jurassic (160 million year old) age of England. The body preserved nicely though there is weathering along the edges of the vertebrae. The processes also didn't remain intact.
Comes with an acrylic display stand.
Ichthyosaurs ("Fish Lizard") was a giant marine reptile which thrived from much of the Mesozoic era. They evolved in the mid Triassic from a group of unidentified land reptiles which transition back into the water. This line evolved in parallel to the ancestors of todays dolphins and whales, something known as convergent evolution.