†suborder Isorophina Bell 1976

Edrioasteroidea - Isorophina

Parent taxon: Edrioasteroidea according to C. D. Sumrall and S. Zamora 2011

See also Sumrall 1996

Sister taxa: Aragocystites, Camptostroma, Cyathocystida, Cyathothecidae, Edrioasterida, Edrioblastoida, Hemicystitidae, Isorophida, Isorophinidae, Kailidiscus, Pyrgocystidae, Stromatocystitida, Stromatocystitidae, Yorkicystitidae

Subtaxa: Isorophidae

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Ecology: stationary low-level epifaunal suspension feeder

Distribution:

• Dobrotivian of Morocco (1 collection)

• Ordovician of Canada (2: Ontario), Morocco (3), United States (12: Illinois, Kentucky, Ohio)

Total: 18 collections including 19 occurrences

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