|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cyclocystoidea - Cyclocystoididae
It was assigned to Echinodermata by Salter and Billings (1858); to Cyclocystoidea by Henderson and Shergold (1971); to Cyclocystoididae by Regnéll (1945), Parsley (1981) and Smith and Paul (1982); and to Isorophida by Sepkoski (2002).
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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.