Species: Xenophora agglutinans and Xenophora pallidula
Age: Eocene, Lutetian
Locality: Gironde, France (fossil) – Indo-Pacific (recent shell)
Measurements: 10.5 cm long
Weight: 77 g
This is a gorgeous set that consists of two Xenophora shells. Xenophora are well-known gastropods, some species of which agglutinate dead seashells while growing. It is believed that this behaviour enables them to grow larger while saving shell material.