Bell tower - Fossil carapace - 22 cm - 19 cm

The largest fossil shell, Campanile giganteum, is one of the most imposing gastropods ever to have lived on Earth, measuring 52 cm in straight length, a giant from the Eocene, about 37 million years old, with its matrix teeming with various mollusks. The whole is completely natural—a magnificent fossil, rare in this state of preservation.