|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Cardiida - Cardiidae
It was reranked as Trigoniocardia (Americardia) by Palmer and Brann (1965) and Dockery (1982).
It was assigned to Trigoniocardia by Palmer and Brann (1965) and Dockery (1982); to Veneroida by Sepkoski (2002); to Fraginae by Rosenberg (2005); and to Cardiidae by Powell (2008).
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