Cardium (Cerastoderma s.s.) sp.

Fossil mollusc, Cardium (Cerastoderma s.s.) sp (bivalve); decorticated umbonal fragments, interiors matrix filled, hand collected from the Pleistocene (Serripes Zone, horizon 13/3 N) deposits, of Tungukambur, Tjörnes, Iceland collected by P E P Norton, July 1969