TrachycardiumTrachycardium is a genus of molluscs in the family Cardiidae.Fossil recordsThis genus is known in the fossil records from the Cretaceous to the Quaternary. Fossils are found in the marine strata throughout the world.SpeciesSpecies within this genus include:Trachycardium belcheri Trachycardium consors Trachycardium egmontianum — Florida prickly cockleTrachycardium isocardia — West Indian prickly cockleTrachycardium muricatum — yellow cockleTrachycardium procerum — Slender cockleTrachycardium rossi Marwick, 1944