|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Cardiida - Cardiidae
It was reranked as Trachycardium (Dallocardia) by da Silva Forti (1969), Woodring (1982) and Coan et al. (2000).
It was assigned to Trachycardium by da Silva Forti (1969), Woodring (1982) and Coan et al. (2000); to Veneroida by Sepkoski (2002); and to Trachycardiinae by Coan and Valentich-Scott (2012).
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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.