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''Thyasira'' is a
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of saltwater clams, marine bivalve
mollusk 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 e ...
s in the family
Thyasiridae Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Berry, 1947 ** '' Adontorhina cyclia'' S. S. Berry, 1947 ** '' Adontorhina keegani'' Barry & McCormack ...
.


Species

There are more than 50 species in the genus, including both extant (living) and extinct fossil species: * ''
Thyasira gouldi ''Thyasira gouldi'', common name the Northern hatchet-shell, is a species of saltwater clam, a marine bivalve mollusc in the family Thyasiridae. This species has been fully protected since 1992 in the United Kingdom under the Wildlife and Co ...
'' * ''
Thyasira scotiana ''Thyasira'' is a genus of saltwater clams, marine bivalve mollusks in the family Thyasiridae Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Be ...
'' * ''
Thyasira trisinuata ''Thyasira trisinuata'', common name the "Atlantic cleft clam", is a species of saltwater clam, a marine bivalve mollusc in the family Thyasiridae. This species is found along the Atlantic coast of North America, ranging from Nova Scotia to ...
''


References

Thyasiridae Bivalve genera {{bivalve-stub