''Trachycardium'' is a genus of

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 family

Cardiidae A cockle is an edible marine bivalve mollusc. Although many small edible bivalves are loosely called cockles, true cockles are species in the family Cardiidae. MolluscaBase eds. (2022). MolluscaBase. Cardiidae Lamarck, 1809. Accessed through: W ...

Fossil records

This genus is known in the

fossil record A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in ...

s from the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

to the

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...

(age range: from 109.0 to 0.0 million years ago). Fossils are found in the marine strata throughout the world. Fossilworks
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Species

Species within this genus include:WoRMS
/ref> * '' Trachycardium belcheri'' (Broderip & G. B. Sowerby I, 1829) * '' Trachycardium consors'' (G. B. Sowerby, 1833) * '' Trachycardium egmontianum'' (Shuttleworth, 1856) — Florida prickly cockle * '' Trachycardium isocardia'' — West Indian prickly cockle * '' Trachycardium muricatum'' (Linnaeus, 1758) — yellow cockle * '' Trachycardium procerum'' (G. B. Sowerby, 1833) — Slender cockle * '' Trachycardium rossi'' Marwick, 1944

References

Cardiidae Bivalve genera {{Cardiidae-stub