18 genera are assigned to the class PARACRINOIDEA
| Order | Genus | FOP | FOS | LOP | LOS |
|---|
| COMAROCYSTITIDA | Achradocystites | O | Cara-m | O | Cara-m |
| COMAROCYSTITIDA | Amygdalocystites | O | Cara-m | O | Cara-m |
| COMAROCYSTITIDA | Billingsocystis | O | m | O | m |
| COMAROCYSTITIDA | Canadocystis | O | Llde | O | Cara-l |
| COMAROCYSTITIDA | Comarocystites | O | Cara-l | O | Cara-m |
| COMAROCYSTITIDA | Implicaticystis | O | Cara-m | O | Ashg-m |
| COMAROCYSTITIDA | Oklahomacystis | O | Cara-l | O | Cara-l |
| COMAROCYSTITIDA | Ovulocystites | S | Ldov-u | S | Ldov-u |
| COMAROCYSTITIDA | Schuchertocystis | O | Llde-u | O | Cara-l |
| COMAROCYSTITIDA | Sinclairocystis | O | Cara-l | O | Ashg-m |
| PLATYCYSTITIDA | Globulocystites | O | Cara-l | O | Cara-l |
| PLATYCYSTITIDA | Malocystites | O | Llvi | O | Llde |
| PLATYCYSTITIDA | Platycystites | O | Llde-u | O | Cara-l |
| PLATYCYSTITIDA | Wellerocystis | O | Cara-l | O | Cara-l |
| uncertain | Bistomiacystis | O | Cara-l | O | Cara-l |
| uncertain | Columbocystis | O | Cara-l | O | Cara-l |
| uncertain | Foerstecystis | O | Cara-l | O | Cara-l |
| uncertain | Springerocystis | O | Cara-l | O | Cara-l |
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FOP = Period of first occurrence
FOS = Stage of first occurrence
LOP = Period of last occurrence
LOS = Stage of last occurrence
Stage abbreviations follow Sepkoski (2002).