Inoceramidae

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Inoceramidae Temporal range: Permian–late Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N

Inoceramus from the Cretaceous of South Dakota
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Pteriida
Superfamily:	†Ambonychioidea
Family:	†Inoceramidae Giebel, 1852

The Inoceramidae are an extinct family of bivalves ("clams") in the Class Mollusca. Fossils of inoceramids are found in marine sediments of Permian to latest Cretaceous in age. Inoceramids tended to live in upper bathyal and neritic environments.^[1] Many species of inoceramid are found all over the world, demonstrating the wide distribution of their preferred ecosystems, and possibly long-lived planktotrophic larvae.^[2] Despite their wide distribution, the pace of evolution of inoceramids was great, with species ranges commonly averaging 0.2-0.5 Ma.^[2]

Size

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Various species of inoceramids have achieved shell sizes ranging from small to large. Members of the Inoceramus and Cladoceramus genera have shells of more than 1 metre (3 ft 3 in) in length.^[2] In 1952, a huge specimen of Inoceramus steenstrupi 1.87 metres (6 ft 2 in) long, was found in Qilakitsoq, the Nuussuaq Peninsula, Greenland. This fossil is 83 Ma old, the Upper Santonian or Lower Campanian stage.^[3]

Taxonomy

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Inoceramidae Giebel, 1852

Genus Actinoceramus Meek, 1864 (Synonym = Birostrina De Luc & Sowerby, 1821)
Genus Anopaea Eichwald, 1861
Genus Arctomytiloides Polubotko, 1992
Genus Cataceramus Cox, 1969
Genus Cladoceramus Seitz, 1961
Genus Cremnoceramus Heinz, 1932
Genus Endocostea Whitfield, 1877
Genus Inoceramus Sowerby, 1814
- Subgenus Inoceramus (Cordiceramus) (Heinz, 1932)
- Subgenus Inoceramus (Inoceramus) Sowerby, 1814
- Subgenus Inoceramus (Sphenoceramus) (Böhm, 1915)
Genus Magadiceramus Heinz, 1932
Genus Mytiloides Brongniart, 1822
Genus Neocomiceramus Pokhialainen, 1972
Genus Neoinoceramus Ihering, 1902
Genus Parainoceramus Voronetz, 1936
Genus Platyceramus Heinz, 1932
Genus Pseudomytiloides Koschelkina, 1963
Genus Retroceramus Koschelkina, 1958
Genus Spyridoceramus Cox, 1969
Genus Tethyoceramus Sornay, 1980
Genus Trochoceramus Heinz, 1932
Genus Volviceramus Stoliczka, 1871

Footnotes

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^ "Paleoecologic Context", Pasch and May (2001); pages 224–225.
^ ^a ^b ^c Lower Turonian Euramerican Inoceramidae: A morphologic, taxonomic, and biostratigraphic overview. A report from the first Workshop on Early Turonian Inoceramids (Oct. 5-8, 1992) in Hamburg, Germany; organized by Heinz Hilbrecht and Peter J. Harries
^ "Verdens største musling". Archived from the original on 18 August 2022.

Size

Taxonomy

Footnotes

Further reading