Caprinidae

Caprinidae is a family of rudists, a group of unusual extinct saltwater clams, marine heterodont bivalves in the order Hippuritida.^[2]

Caprinidae Temporal range: Cretaceous, 140.2–66.043 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N
Fossil shell of Caprina adversa from France, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	†Hippuritida
Suborder:	†Hippuritidina
Superfamily:	†Caprinoidea
Family:	†Caprinidae d'Orbigny, 1850
Genera
See text.

These stationary intermediate-level epifaunal suspension feeders lived in the Cretaceous period, from 140.2 to 66.043 Ma.^[1] The rudists became extinct at the end of the Cretaceous, apparently as a result of the Cretaceous–Paleogene extinction event.

Fossils of this genus have been found in the sediments of Europe, China, Cuba, Egypt, Guatemala, Jamaica, Japan, Mexico, Oman, the Philippines, Turkey, Russia, the United States and Venezuela.^[1]