†order Platycystitida

Paracrinoidea - Platycystitida

Parent taxon: Paracrinoidea according to J. J., Jr. Sepkoski 2002

Sister taxa: Comarocystitida, Heckeritidae, Springerocystidae

Subtaxa: Bistomiacystitidae Malocystitidae Platycystitidae

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Ecology: stationary epifaunal suspension feeder

Distribution:

• Chazyan of Canada (9: Ontario, Quebec collections), United States (10: New York, Tennessee)

• Ordovician of United States (22: Kentucky, Missouri, Oklahoma, Tennessee, Virginia)

Total: 41 collections including 58 occurrences

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