Bucks Earth Heritage GroupKimmeridge ClayBetter known from Kimmeridge Bay in Dorset, this clay underlies quite an area of mid-Bucks and fossils often turn up in road works or other trenches for building works. The fossils can be fragile, but there is a notable harder horizon known as the cementstone nodule band, which preserves numerous bivalve shells. It was deposited 152 million years ago.
The Kimmeridge Clay is famous for its vertebrate bones
Belemnites occur in several geological horizons (for instance, the Oxford Clay, Gault and Chalk). See the Gault for a reconstruction of this squid-like animal
|
