|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the superorder Echinacea by Durham and Melville (1957); it was reranked as the unranked clade Echinacea by Smith (1991) and Kroh and Smith (2010).
It was assigned to Euechinoidea by Durham and Melville (1957), Smith (1991) and Kroh and Smith (2010).
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.