Clypeus plotti (Salter)
The 'classic' Cotswold Fossil. Known as 'Chedworth Buns' and 'Poundstones'. As the shell is very thin these are prone to damage by frost when exposed . This is an absolute beauty with all the shell intact.
Jurassic, Bajocian, Clypeus Grit.
Wyke Rissington, Gloucestershire.
Echinoid : 8.5 diam.