|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Bivalvia - Cyrtodontida
It was corrected as Cyrtodontoidea by Ride et al. (1999), Bouchet et al. (2010) and Carter et al. (2011).
It was assigned to Arcoida by Newell (1965), Vokes (1980), Bailey (1983) and Ride et al. (1999); to Cyrtodontida by Bouchet et al. (2010); and to Cyrtodontidina by Carter et al. (2011).
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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.