|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Cardiida - Cardiidae
It was reranked as Vepricardium (Orthocardium) by Cox et al. (1969); it was reranked as Cardium (Orthocardium) by Keen (1980) and Le Renard and Pacaud (1995).
It was assigned to Vepricardium by Cox et al. (1969); to Cardiinae by Vokes (1980); to Cardium by Keen (1980) and Le Renard and Pacaud (1995); to Orthocardiinae by Schneider (2002); and to Veneroida by Sepkoski (2002).
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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.