|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
It was reranked as the subclass Disparida by Webster and Rakhmonov (2009) and Webster et al. (2009); it was reranked as the superorder Disparida by Wright et al. (2017).
It was assigned to Inadunata by Donovan (1984) and Donovan (1986); to Crinoidea by Sepkoski (2002), Webster and Rakhmonov (2009), Webster et al. (2009) and Ausich et al. (2015); and to Inadunata by Wright et al. (2017).
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