Opinions from R. J. Wernlund 1977
- 'Aboculus belongs to Achistridae'
- 'Aboculus robustus belongs to Aboculus'
- 'Achistridae belongs to Holothuroidea'
- 'Achistrum belongs to Achistridae'
- 'Achistrum monochordata belongs to Achistrum'
- 'Achistrum nicholsoni belongs to Achistrum'
- 'Calclamnella belongs to Calclamnidae'
- 'Calclamnidae belongs to Holothuroidea'
- 'Calclyra belongs to Calclyridae'
- 'Calclyra spathulata belongs to Calclyra'
- 'Calclyra spinata belongs to Calclyra'
- 'Calclyra triangulata belongs to Calclyra'
- 'Calclyridae belongs to Holothuroidea'
- 'Eocaudina belongs to Calclamnidae'
- 'Eocaudina mccormacki belongs to Eocaudina'
- 'Eocaudina septaforaminalis belongs to Eocaudina'
- 'Eocaudina subhexagona belongs to Eocaudina'
- 'Microantyx belongs to Protocaudinidae'
- 'Microantyx botoni belongs to Microantyx'
- 'Microantyx mudgei belongs to Microantyx'
- 'Microantyx permiana belongs to Microantyx'
- 'Paleochiridotidae belongs to Holothuroidea'
- 'Priscopedatidae belongs to Holothuroidea'
- 'Priscopedatus belongs to Priscopedatidae'
- 'Priscopedatus bullatus belongs to Priscopedatus'
- 'Priscopedatus buno belongs to Priscopedatus'
- 'Priscopedatus irregularis is recombined as Calclamnella irregularis'
- 'Priscopedatus pyramidalis belongs to Priscopedatus'
- 'Priscopedatus radiatus belongs to Priscopedatus'
- 'Priscopedatus spicaudina belongs to Priscopedatus'
- 'Priscopedatus stellatus belongs to Priscopedatus'
- 'Prosynapta eiseliana is recombined as Calclyra eiseliana'
- 'Protocaudinidae belongs to Holothuroidea'
- 'Rota belongs to Paleochiridotidae'
- 'Rota campbelli belongs to Rota'
- 'Rota martini belongs to Rota'
- 'Stichopitidae belongs to Holothuroidea'
- 'Tetravirga belongs to Stichopitidae'
- 'Tetravirga imperforata belongs to Tetravirga'
- 'Thalattocanthus belongs to Theelidae'
- 'Thalattocanthus consonus belongs to Thalattocanthus'
- 'Theeliidae is corrected as Theelidae and belongs to Holothuroidea'
- 'Thuroholia belongs to Calclamnidae'
- 'Thuroholia cribriformis belongs to Thuroholia'
- 'Thuroholia croneisi belongs to Thuroholia'
- 'Thuroholia marginata is recombined as Eocaudina marginata'