Opinions from G. Regnéll 1945
- 'Anomalocystitidae belongs to Mitrata'
- 'Apiocystinae belongs to Callocystitidae'
- 'Apiocystites angelini is recombined as Lovenicystis angelini'
- 'Ateleocystites belongs to Anomalocystitidae'
- 'Bockia belongs to Eocrinoidea'
- 'Callocystitidae belongs to Glyptocystitida'
- 'Caryocrinites belongs to Caryocrinitidae'
- 'Caryocrinites ornatus belongs to Caryocrinites'
- 'Caryocrinites septentrionalis belongs to Caryocrinites' according to Regnell 1945
- 'Caryocystis geometrica is recombined as Stichocystis geometrica'
- 'Caryocystites belongs to Caryocystitidae'
- 'Stichocystis alutacea is a subjective synonym of Stichocystis alutacea'
- 'Caryocystites alutacea is recombined as Stichocystis alutacea' according to Angelin 1878
- 'Stichocystis alutacea is a subjective synonym of Stichocystis alutacea'
- 'Caryocystites testudinarius belongs to Caryocystites' according to Hisinger and Buch 1846
- 'Caryocystitidae belongs to Caryocystitida'
- 'Cheirocrinidae belongs to Glyptocystitida'
- 'Cheirocrinus belongs to Cheirocrinidae'
- 'Chirocrinus leuchtenbergi is recombined as Cheirocrinus leuchtenbergi' according to Angelin 1878
- 'Cheirocrinus leuchtenbergi is a subjective synonym of Cheirocrinus leuchtenbergi'
- 'Cheirocrinus leuchtenbergi is a subjective synonym of Cheirocrinus leuchtenbergi'
- 'Chirocrinus nodosus is recombined as Cheirocrinus nodosus' according to Jaekel 1899
- 'Cheirocrinus nodosus is a subjective synonym of Cheirocrinus nodosus'
- 'Chirocrinus ornatus is recombined as Cheirocrinus holmi'
- 'Cheirocrinus holmi is a subjective synonym of Cheirocrinus holmi'
- 'Coronata belongs to Blastoidea'
- 'Cyathocrinus penniger is recombined as Cheirocrinus penniger'
- 'Cyathotheca belongs to Cyathothecidae'
- 'Cyathotheca suecica belongs to Cyathotheca'
- 'Cyathothecidae belongs to Edrioasteroidea'
- 'Cyclocystoides belongs to Cyclocystoididae'
- 'Cyclocystoides halli belongs to Cyclocystoides'
- 'Cyclocystoididae belongs to Cyclocystoidea'
- 'Cystoidea belongs to Pelmatozoa'
- 'Dendrocystites belongs to Dendrocystitidae'
- 'Dendrocystites sedgwicki belongs to Dendrocystites'
- 'Dendrocystitidae belongs to Soluta'
- 'Echinoencrinites belongs to Echinoencrinitidae'
- 'Echinoencrinites reticulatus belongs to Echinoencrinites' according to Jaekel 1899
- 'Echinoencrinites senckenbergii belongs to Echinoencrinites' according to Meyer 1826
- 'Echinoencrinites senckenbergii is a subjective synonym of Echinoencrinites senckenbergii'
- 'Echinoencrinitidae belongs to Glyptocystitida'
- 'Echinosphaerites belongs to Echinosphaeritidae'
- 'Echinosphaerites aurantium aurantium belongs to Echinosphaerites aurantium' according to Gyllenhaal 1772
- 'Echinosphaerites aurantium suecicus belongs to Echinosphaerites aurantium' according to Jaekel 1899
- 'Echinosphaerites balticus is recombined as Heliocrinites balticus'
- 'Echinosphaerites grandis belongs to Echinosphaerites' according to Jaekel 1899
- 'Echinus aurantium is recombined as Echinosphaerites aurantium'
- 'Eocrinoidea belongs to Pelmatozoa'
- 'Eucystis belongs to Sphaeronitidae'
- 'Eucystis acuminata belongs to Eucystis' according to Regnell 1945
- 'Eucystis angelini belongs to Eucystis' according to Regnell 1945
- 'Eucystis quadrangularis belongs to Eucystis' according to Regnell 1945
- 'Eucystis raripunctata belongs to Eucystis'
- 'Glyptocystitida belongs to Rhombifera'
- 'Glyptosphaerites belongs to Glyptosphaeritidae'
- 'Glyptosphaerites suecicus belongs to Glyptosphaerites' according to Angelin 1878
- 'Glyptosphaeritidae belongs to Seriolata'
- 'Gomphocystites belongs to Gomphocystitidae'
- 'Gomphocystites glans belongs to Gomphocystites' according to Hall 1864
- 'Gomphocystites gotlandica is corrected as Gomphocystites gotlandicus and belongs to Gomphocystites' according to Angelin 1878
- 'Gomphocystites gotlandicus is a subjective synonym of Gomphocystites gotlandicus'
- 'Haplosphaeronis belongs to Sphaeronitidae'
- 'Heliocrinites belongs to Caryocystitidae'
- 'Heliocrinites angustiporus belongs to Heliocrinites' according to Regnell 1945
- 'Heliocrinites granatum belongs to Heliocrinites' according to Wahlenberg 1821
- 'Heliocrinites guttaeformis belongs to Heliocrinites' according to Regnell 1945
- 'Heliocrinites ovalis belongs to Heliocrinites' according to Angelin 1878
- 'Heliocrinites prominens belongs to Heliocrinites' according to Angelin 1878
- 'Heliocrinites stellatus belongs to Heliocrinites' according to Regnell 1945
- 'Hemicosmites belongs to Hemicosmitidae'
- 'Hemicosmites extraneus belongs to Hemicosmites' according to Eichwald 1840
- 'Hemicosmites oelandicus belongs to Hemicosmites' according to Regnell 1945
- 'Hemicosmites pyriformis belongs to Hemicosmites'
- 'Hemicosmitida belongs to Rhombifera'
- 'Hemicosmitidae belongs to Hemicosmitida'
- 'Hemicystitidae belongs to Edrioasteroidea'
- 'Holocystites belongs to Aristocystitidae'
- 'Hydrophoridea belongs to Cystoidea'
- 'Lovenicystis belongs to Apiocystinae'
- 'Orocystites helmhackeri is recombined as Heliocrinites helmhackeri'
- 'Paracystis belongs to Stephanoblastidae'
- 'Paracystis ostrogothicus belongs to Paracystis'
- 'Proctocystis belongs to Echinoencrinitidae'
- 'Proctocystis monstruosa belongs to Proctocystis'
- 'Pyrgocystis belongs to Hemicystitidae'
- 'Pyrgocystis sardesoni belongs to Pyrgocystis'
- 'Rhombifera belongs to Hydrophoridea'
- 'Scalpellum cylindricum is recombined as Pyrgocystis cylindrica' according to Aurivillius 1892
- 'Pyrgocystis cylindrica is a subjective synonym of Pyrgocystis cylindrica'
- 'Scalpellum procerum is recombined as Pyrgocystis procera' according to Aurivillius 1892
- 'Pyrgocystis procera is a subjective synonym of Pyrgocystis procera'
- 'Scalpellum sulcatum is recombined as Pyrgocystis sulcata' according to Aurivillius 1892
- 'Pyrgocystis sulcata is a subjective synonym of Pyrgocystis sulcata'
- 'Scalpellum varium is recombined as Pyrgocystis varia' according to Aurivillius 1892
- 'Pyrgocystis varia is a subjective synonym of Pyrgocystis varia'
- 'Seriolata belongs to Diploporita'
- 'Soluta belongs to Carpoidea'
- 'Sphaeronites belongs to Sphaeronitidae'
- 'Sphaeronites oblonga is recombined as Sphaeronis oblonga' according to Angelin 1899
- 'Sphaeronites oblonga is recombined as Haplosphaeronis oblonga'
- 'Sphaeronites ovalis is corrected as Sphaeronites globulus and belongs to Sphaeronites' according to Angelin 1878
- 'Sphaeronites globulus is a subjective synonym of Sphaeronites globulus'
- 'Sphaeronitidae belongs to Sphaeronitida'
- 'Stephanoblastidae belongs to Coronata'
- 'Stichocystidae belongs to Polycosmitida'
- 'Stichocystis belongs to Stichocystidae'
- 'Stromatocystites belongs to Stromatocystitidae'
- 'Stromatocystites balticus belongs to Stromatocystites' according to Jaekel 1899
- 'Stromatocystites pentangularis belongs to Stromatocystites'
- 'Stromatocystitidae belongs to Edrioasteroidea'
- 'Tormoblastus belongs to Stephanoblastidae'
- 'Tormoblastus bodae belongs to Tormoblastus'