World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Cardium mortoni Conrad, 1831. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=466731 on 2026-08-25
Conrad, T. A. (1831). Description of fifteen new species of Recent, and three of fossil shells, chiefly from the coast of the United States. Journal of the Academy of Natural Sciences of Philadelphia. 6(2): 256-268, plate 11.