is a Neolithic decorative style that gets its name from the practice of imprinting the clay with the shell of Cardium edulis, a marine mollusk. The alternative name Impressed Ware is used by some archaeologists to define this culture, because impressions can be with other sharp objects, such as a nail or comb.

Cardium pottery is found in the zone "covering Italy to the Ligurian coast" as distinct from the more western Cardial beginning