Cardium Pottery or
Cardial Ware is a
Neolithic decorative style that gets its name from the imprinting of the clay with the shell of the cockle, an edible marine
mollusk, formerly
Cardium edulis, now Cerastoderma edule. These forms of pottery are in turn used to define the Neolithic
culture which produced and spread them, mostly commonly called the "Cardial Culture".