{{Short description|Extinct genus of bivalves}} {{automatic taxobox | fossil_range = Mesozoic | taxon = Protocardia | authority = | subdivision_ranks = Species | subdivision = }}
'''''Protocardia''''' is an extinct genus of saltwater clams, marine bivalve mollusks in the subfamily Protocardiinae of the family Cardiidae, the cockles.<ref name="Schneider2010">{{Cite journal | last1 = Schneider | first1 = S. | last2 = Fürsich | first2 = F. T. | last3 = Werner | first3 = W. | title = Marking the Kimmeridgian-Tithonian transition with a bivalve – ''Protocardia gigantea'' sp. Nov. (Bivalvia: Cardiidae) and its relatives from the Lusitanian Basin (Portugal) | doi = 10.1127/0077-7749/2010/0093 | journal = Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen | volume = 258 | pages = 167 | year = 2010 }}</ref>
The internal anatomy of individuals in this genus is sometimes preserved in phosphate.<ref name="Wilby2009">{{Cite journal | doi = 10.1017/S001675680001147X| last1 = Wilby | first1 = P. R. | last2 = Whyte | first2 = M. A. | title = Phosphatized soft tissues in bivalves from the Portland Roach of Dorset (Upper Jurassic) | journal = Geological Magazine | volume = 132 | page = 117 | year = 1995}}</ref>
== References == {{Reflist}}
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Category:Prehistoric bivalve genera
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