Genus Excentrodiscus Hollande & Enjumet, 1960

Type species. Excentrodiscus echinatus Hollande & Enjumet, 1960 .

Remarks. This genus is the longest-ranged taxon of the family. I included in this article two new species from the Eocene and one from the middle Miocene.

Range and occurrence. Late Santonian or early Campanian to Recent.