|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Cardiida - Cardiidae
It was reranked as Protocardia (Nemocardium) by Woodring (1925); it was reranked as Cardium (Nemocardium) by Vredenburg (1928).
It was assigned to Protocardia by Woodring (1925); to Cardium by Vredenburg (1928); to Protocardiinae by Moore (1976), Vokes (1980), Woodring (1982) and Dockery (1982); to Laevicardiinae by Schneider (1995) and Coan et al. (2000); to Cardiidae by Lamprell and Whitehead (1992) and Schneider (2002); and to Veneroida by Sepkoski (2002).
|Year||Name and author|
|1925||Protocardia (Nemocardium) Woodring p. 147|
|1928||Cardium (Nemocardium) Vredenburg p. 445|
|1976||Nemocardium Moore p. 47|
|1980||Nemocardium Vokes p. 129|
|1982||Nemocardium Dockery p. 72|
|1982||Nemocardium Woodring p. 644|
|1992||Nemocardium Lamprell and Whitehead p. 68|
|1995||Nemocardium Schneider p. 339|
|2000||Nemocardium Coan et al. p. 360|
|2002||Nemocardium Schneider p. 351 figs. Figure 25|
|2002||Nemocardium Sepkoski, Jr.|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.