|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Rhynchonellata - Rhynchonellida - Cyclothyrididae
It was assigned to Rhynchonellida by Sepkoski (2002); to Cardinirhynchiinae by Williams et al. (2002); and to Cyclothyridinae by Atrops and Alméras (2005).
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.