During the Early Tertiary, prosobranch gastropods of the family Campanilidae Douville 1904 comprised an extensive group of many large-shelled species that were common in the Tethys Sea. Some species such as Campanile giganteum (Lamarck 1804), the type-species of the genus Campanile, attained a length of 1 m and are among the largest gastropods on record. The family is represented today by a single living species from southwestern Australia, Campanile symbolicum Iredale 1917.