Gryphaea arcuata Lamarck.
Really huge Gryphaea from the type locality for this fossil on the River Severn. The shell is distorted in two areas either duo to pathology or crushing. Unusual.
Jurassic, Lower Sinemurian.
Hock Cliff, River Severn, Fretherne, Gloucestershire.
Specimen : 9 x 6 cm.
