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Echinoidea - Pedinoida
It was reranked as the order Pedinoida by Fell (1966), Sepkoski (2002), Kroh and Smith (2010) and Smith (2015).
It was assigned to Diadematacea by Fell (1966); to Echinoidea by Sepkoski (2002); to Acroechinoidea by Kroh and Smith (2010); and to Acroechinoidea by Smith (2015).
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.