†order Nucleocrinida Waters and Horowitz 1993 (blastoid)

Blastoidea - Nucleocrinida

Full reference: J.A. Waters and A.S. Horowitz. 1993. Ordinal-level evolution in the Blastoidea. Lethaia 26:207-213

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

Sister taxa: Kadiskoblastus, Malchiblastus, Monoblastus, Monoschizablastus, Pentremitida, Tanablastus, Troosticrinida, Uyguroblastus, Xinjiangoblastus

Subtaxa: Nucleocrinidae

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Ecology: stationary intermediate-level epifaunal suspension feeder

Distribution:

• Devonian of United States (19: Indiana, Iowa, Kentucky, Michigan, Missouri, New York, Ohio collections)

Total: 19 collections including 21 occurrences

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