Zirfaea cf. crispata (LINNÉ)

Fossil mollusc, Zirfaea cf. crispata (LINNÉ) (bivalve, oval piddock); very worn right hinge, hand collected from the Quaternary (Pleistocene, Norwich Crag) deposits, of Sizewell 'A' Nuclear Power Station 1961 sample 'B', Sizewell, Suffolk, England collected by P E P Norton, 1961