Classification of the order Parablastoidea

Or. †Parablastoidea Hudson 1907
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Fm. †Blastocystidae Jaekel 1918
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G. †Blastoidocrinus Billings 1859
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Blastoidocrinus nevadensis Sprinkle 1973
G. †Eurekablastus Sprinkle and Sumrall 2008
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Eurekablastus ninemilensis Sprinkle and Sumrall 2008
Eurekablastus rozhnovi Sprinkle and Sumrall 2008
G. †Parabolablastus Sprinkle and Sumrall 2008
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Parabolablastus elongatus Sprinkle 1973
G. †Pachyocrinus Billings 1859
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Pachyocrinus crassibasalis Billings 1859