†order Edrioblastoida Fay 1962

Edrioasteroidea - Edrioblastoida

Alternative spelling: Edrioblastoidea

Parent taxon: Edrioasteroidea according to X.-J. Zhu et al. 2014

See also Beaver et al. 1967 and Sprinkle 1982

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

Subtaxa: Cambroblastus Pentacystida

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Distribution:

• Ordovician of Australia (2 collections), Canada (1: Ontario), United States (10: Illinois, Iowa, Iowa, Minnesota, Missouri, Oklahoma)

• Taoyuanian of China (1)

• Cambrian of Australia (1)

Total: 15 collections each including a single occurrence

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