A stunning example of a fossil bivalve shellfish of the genus Gryphaea from Hock Cliff, Gloucestershire.
The fossil measures 54 mm (2.12 inches) long. The shell is that of an Early Jurassic bivalve also known as a "Devil's toenail" due to its gnarly, curled shape. It is in good condition with the growth lines of the shell distinct and it has both valves of the shell in position, which is sought after in this genus. It has some unusual rusted iron oxide on the shell giving it dark red blotches. It has been coated in a reversible (soluble) lacquer for protection. A very fine example.
Around 198 million years old (Sinemurian, Early Jurassic), this fossil would make a wonderful addition to any collection.