Paracrinoidea

Paracrinoidea is an extinct class of blastozoan echinoderms.

Paracrinoids are characterized by a mouth with two to five feeding arms arranged asymmetrically, or somewhat bisymmetrically.

They have a U-shaped gut, and their anus is located next to the mouth.

They have irregularly shaped bodies (theca), and a stem, superficially similar to crinoids, and may have used the stem to attach themselves to a substrate, although some reconstructions show them partially buried in sediment.

See List of echinodermata orders Doubtful paracrinoids:[citation needed] Phylogeny after Limbeck (2018)