Zirfaea cf. crispata (LINNÉ)

Fossil mollusc, Zirfaea cf. crispata (LINNâ) (bivalve, Oval piddock); umbonal part of left valve, hand collected from the Quaternary (Pleistocene, Early Pleistocene) deposits, Weybourne Crag, of Sidestrand K, Sidestrand, Norfolk, England collected by Dr P.E.P. Norton, 1961