original description
(of Cardium stricklandi J. Morris & Lycett, 1853 †) Morris, J. & Lycett, J. (1853-1855). A Monograph of the Mollusca from the Great Oolite, chiefly from Minchinhampton and the coast of Yorkshire. Part II: Bivalves; Part III: Bivalves. <em>Monographs of the Palaeontographical Society.</em> 7(23): 1-80 [1853]; 8(28): 81-147 [1855; for 1854]., available online at https://biodiversitylibrary.org/page/20754766 [details]
basis of record
Schneider, S.; Fürsich, F. T.; Werner, W. (2010). Marking the Kimmeridgian-Tithonian transition with a bivalve – <I>Protocardia gigantea</I> sp. nov. (Bivalvia: Cardiidae) and its relatives from the Lusitanian Basin (Portugal). <em>Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.</em> 258 (2): 167-184., available online at https://doi.org/10.1127/0077-7749/2010/0093 [details]
From editor or global species database