Ichthyosaurus cf communis Conybeare & De la Beche
The basioccipital bone from the very base at the back of the skull of an Ichthyosaur. Onto which the first vertebra articulate. A very distinctive bone. uncommon find.
Jurassic, Lower Sinemurian.
Church Cliff Bay, Lyme Regis, Dorset.
Bone : 4 x 3.4 cm.
