basis of record: Petit R.E. (2009) George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa. Zootaxa 2189: 1–218. [details]
Citation: ter Poorten, J. (2013). Cardium attenuatum G. B. Sowerby II, 1841. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=466723 on 2013-05-25