†order Troosticrinida Bather 1900 (blastoid)

Blastoidea - Troosticrinida

Parent taxon: Blastoidea according to G. D. Webster et al. 2009

Sister taxa: Coronoidea, Eublastoidea, Fissiculata, Granatocrinida, Lysocystites, Macurdablastus, Pentremitida, Zygocrinus

Subtaxa: Troosticrinidae

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Ecology: stationary intermediate-level epifaunal suspension feeder

Distribution:

• Carboniferous of Canada (1: Alberta collection), China (2), United States (38: Alabama, Illinois, Indiana, Iowa, Kentucky, Missouri, Montana)

• Devonian of Spain (1)

• Silurian of United States (4: Indiana, Kentucky, Missouri, Tennessee)

Total: 46 collections including 48 occurrences

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