Blastoidea - Spiraculata

Parent taxon: Blastoidea according to J.A. Waters and A.S. Horowitz 1993

See also Beaver et al. 1967, Macurda 1964 and Sepkoski 2002

Sister taxa: Coronoidea, Dissimiloblastus, Eublastoidea, Fissiculata, Freisoblastus, Granatocrinida, Lotusoblastus, Lysocystites, Macurdablastus, Zygocrinus

Subtaxa: Kadiskoblastus Malchiblastus Monoblastus Monoschizablastus Nucleocrinida Pentremitida Tanablastus Troosticrinida Uyguroblastus Xinjiangoblastus

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Ecology: stationary intermediate-level epifaunal suspension feeder

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