Opinions from D. Thies 1983
- 'Annea belongs to Orectolobiformes'
- 'Annea carinata belongs to Annea'
- 'Brachaeluridae belongs to Orectolobiformes'
- 'Elasmobranchii belongs to Chondrichthyes'
- 'Heterodontidae belongs to Heterodontiformes'
- 'Heterodontiformes belongs to Galeomorphii'
- 'Heterodontus belongs to Heterodontidae'
- 'Heterodontus duffini belongs to Heterodontus'
- 'Heterodontus sarstedtensis belongs to Heterodontus'
- 'Hexanchidae belongs to Hexanchiformes'
- 'Hexanchiformes belongs to Squalomorphii'
- 'Hexanchus belongs to Hexanchidae'
- 'Hexanchus wiedenrothi belongs to Hexanchus'
- 'Jurobatos belongs to Rhinobatidae'
- 'Neoselachii belongs to Elasmobranchii'
- 'Orectoloboides belongs to Orectolobiformes'
- 'Palaeobrachaelurus belongs to Brachaeluridae'
- 'Palaeobrachaelurus alisonae belongs to Palaeobrachaelurus'
- 'Palaeobrachaelurus aperizostus belongs to Palaeobrachaelurus'
- 'Palaeobrachaelurus bedfordensis belongs to Palaeobrachaelurus'
- 'Palaeospinacidae belongs to Neoselachii'
- 'Palaeospinax belongs to Palaeospinacidae'
- 'Palaeospinax kruckowi belongs to Palaeospinax'
- 'Palaeospinax riegrafi belongs to Palaeospinax'
- 'Protospinacidae belongs to Squaliformes'
- 'Protospinax belongs to Protospinacidae'
- 'Protospinax annectans belongs to Protospinax'
- 'Protospinax lochensteinensis belongs to Protospinax'
- 'Protospinax muftius belongs to Protospinax'
- 'Rhinobatidae belongs to Rhinobatoidei'
- 'Rhinobatoidei belongs to Rajiformes'
- 'Spathobatis belongs to Rhinobatidae'
- 'Spathobatis mutterlosei belongs to Spathobatis'
- 'Spathobatis werneri belongs to Spathobatis'
- 'Squatina belongs to Squatinidae'
- 'Squatinidae belongs to Squatiniformes'
- 'Thyellina prisca is recombined as Palaeospinax priscus'