Fossils of Xenophora crispa are found in marine strata of Pliocene of Italy and Spain (age range: from 3.6 to 2.588 million years ago.).

Fossils of the genus Xenophora are found in marine strata from Cretaceous to Quaternary (age range : 89.3 to 0.012 million years).

[4] They are trochoid, depressed-conical shells, non-porcellanous ventrally, with narrow peripheral edge and 7-8 whorls decorated with irregular spirals wrinkles.

[5] Prismatic microstructures mediate the attachment areas of the foreign objects on the shell of the Xenophora crispa.

This marine species is present in the Mediterranean Sea and off West Africa to Angola.

Found in the bibliography (on the EOL site) you can find a map that shows the global distribution of the 16 species that make up the genus Xenophora.