''Requienia'' is an extinct genus of fossil saltwater clam, a marine

bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

s in the order Hippuritida, family Requieniidae. These rudists lived in the Cretaceous period, from the Valanginian age (136.4–140.2) to the Campanian age (70.6–83.5 mya). They were stationary intermediate-level suspension feeders.

Distribution

This genus occurs in the Cretaceous of Albania (collection), Croatia, France, Germany, Hungary, Iraq, Italy, Mexico, Oman, Portugal, Serbia and Montenegro, Spain, Switzerland, Turkey, Ukraine, United States, Venezuela; Jurassic of Hungary.

Species

*''Requienia ammonia'' *''Requienia migliorinii'' *''Requienia renevieri''

References

External links

Universal Biological Indexer

Paleobiology Database
* Sepkoski, Jac
Sepkoski's Online Genus Database
Hippuritida Prehistoric bivalve genera Valanginian genus first appearances Campanian genus extinctions Cretaceous animals of Asia Fossils of Iraq Fossils of Oman Fossils of Turkey Cretaceous molluscs of Europe Fossils of Albania Fossils of Croatia Fossils of France Fossils of Germany Fossils of Hungary Fossils of Italy Fossils of Portugal Fossils of Spain Fossils of Switzerland Fossils of Ukraine Fossils of Serbia Cretaceous animals of North America Fossils of Mexico Fossils of the United States Cretaceous animals of South America Fossils of Venezuela Fossil taxa described in 2011 {{cretaceous-animal-stub