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Ophiuroidea - Encrinasteridae
It was assigned to Euzonosomatidae by Spencer (1930); to Oegophiurida by Sepkoski (2002); and to Encrinasteridae by Owen (1965), Spencer and Wright (1966) and Dean Shackleton (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.