Caprinidae
Caprinidae is a family of extinct bivalve mollusks belonging to the order Hippuritida. These marine organisms lived during the Cretaceous period, from the Albian to the Campanian stages, approximately 113 to 72 million years ago. They are characterized by their complex, often irregular shells and their association with ancient reef environments.
The most distinctive feature of Caprinidae is the presence of two significantly unequal valves. The lower valve,
Caprinids were sessile, filter-feeding organisms that played a crucial role in the formation of Cretaceous carbonate