A stunning example of a fossil bivalve shellfish of the genus Gryphaea from Hock Cliff, Gloucestershire.
The fossil measures 66 mm (2.6 inches) long, which is large for this species. 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. Only one of the valves is present. 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.