Zirfaea cf. crispata (LINNÉ)

Fossil mollusc, Zirfaea cf. crispata (LINNÉ) (bivalve, Oval piddock); eroded and polished fragment of left valve umbo; borehole from the Quaternary (Pleistocene, Early Pleistocene) deposits, Icenian Crag, of University of East Anglia Borehole 1, Norfolk, England examined by Dr Peter E.P. Norton, 1973