†unranked clade Coronoidea Brett et al. 1983 (blastoid)

Blastoidea

Full reference: C. E. Brett, T. J. Frest, J. Sprinkle and C. R. Clement. 1983. Coroniodea: A new class of Blastozoan Echinoderms based on taxonomic reevaluation of Stephanocrinus. Journal of Paleontology 57(4):627-651

Parent taxon: Blastoidea according to J.E. Bauer et al. 2019

See also Sumrall and Waters 2012

Sister taxa: Eublastoidea, Fissiculata, Granatocrinida, Lysocystites, Macurdablastus, Spiraculata, Zygocrinus

Subtaxa: Coronata

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Ecology: stationary intermediate-level epifaunal suspension feeder

Distribution:

• Silurian of United States (31: Arkansas, Indiana, Iowa, New York, Tennessee, Wisconsin collections)

• Dobrotivian of Spain (1)

• Letna of the Czech Republic (1)

• Ordovician to Silurian of the United Kingdom (1)

• Ordovician of the Czech Republic (8), Italy (3), Portugal (2), Spain (6), Sweden (2), the United Kingdom (7)

Total: 62 collections including 83 occurrences

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