Calyptræa chinensis (LINNÉ) (?)

Fossil mollusc, Calyptræa chinensis (LINNÉ) (?) (gastropod, chinaman's hat); juvenile shell. borehole from the Quaternary (Pleistocene, Early Pleistocene) deposits, Icenian Crag, of the Royal Society Borehole, Ludham, Norfolk, England examined by Dr Peter E.P. Norton, 1961