|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the subphylum Cnidaria by Squires (1984) and Squires (1987).
It was assigned to Coelenterata by Squires (1984) and Squires (1987); to Epitheliozoa by Zrzavy et al. (1998); to Metazoa by Sepkoski (2002) and Edgecombe et al. (2011); and to Neuralia by Nielsen (2012).
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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.