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Crinoidea - Cyathocrinida
It was reranked as the order Cyathocrinida by Ausich (1998), Webster (2006) and Wright et al. (2017).
It was assigned to Crinoidea by Arendt (1996); to Cladida by Campbell and Bein (1971) and Ausich (1998); to Cladida by Webster (2006); and to Cyathoformes by Wright et al. (2017).
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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.