|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Bivalvia - Cardiida - Hemidonacidae
It was considered an invalid subgroup of Venerida by Bouchet et al. (2010).
It was assigned to Cardiacea by Lamprell and Whitehead (1992) and Beesley (1998); and to Hemidonacoidea by Carter et al. (2011).
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.