Laevicardium crassum, the Norwegian egg cockle, is a species of saltwater clam, a cockle, a marine bivalve mollusc in the family Cardiidae, the cockles.WoRMS
Fossil record Fossils of Laevicardium crassum are found in marine strata of the Quaternary (age range: from 0.126 to 0.012 million years ago.). Fossils are known from various localities in Ireland, Italy, Netherlands and Portugal.Paleontology Database
Description Shell of Laevicardium crassum can reach a length of about . The shell exterior is white or light yellow with occasional dark markings. The shell surface is smooth and shows 40-50 ribs with a crenulated margin.Sealife Base
<div align=center> Laevicardium crassum
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<div align=center> Laevicardium crassum mediterraneum
</div align=center> Distribution This species is present in Northeast Atlantic and the Mediterranean, at depths of 9 to 200 m.
Bibliography Gmelin, J.F., 1788-1793. In: Linné, C., Systema naturae, Edit. 13 aucta et reformata cura J.F. Gmelin. 10 vols, Lipsiae. 1788-1793 et Lugduni, 1789-1796. -1,6,
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