Opinions from A. Wells and W. W. K. Houston 2001
- 'Acanthochitona belongs to Acanthochitonidae'
- 'Acanthopleurinae belongs to Chitonidae'
- 'Aplacophora belongs to Mollusca'
- 'Bassethullia belongs to Acanthochitonidae'
- 'Bathoxiphus belongs to Entalinidae'
- 'Cadulus belongs to Gadilidae'
- 'Calliodentaliidae belongs to Dentaliida'
- 'Calliodentalium belongs to Calliodentaliidae'
- 'Callistochiton belongs to Callistoplacinae'
- 'Cephalopoda belongs to Mollusca'
- 'Chiton belongs to Chitoninae'
- 'Chiton (Amaurochiton) belongs to Chiton'
- 'Chiton (Poeciloplax) belongs to Chiton'
- 'Chitoninae belongs to Chitonidae'
- 'Choriplax belongs to Choriplacidae'
- 'Coleoidea belongs to Cephalopoda'
- 'Compressidens belongs to Mosasauridae'
- 'Craspedochiton belongs to Acanthochitonidae'
- 'Cryptoplax belongs to Cryptoplacidae'
- 'Dentaliida belongs to Scaphopoda'
- 'Dentaliidae belongs to Dentaliida'
- 'Dentalium belongs to Dentaliidae'
- 'Dentalium (Laevidentalium) was reranked as Laevidentalium and belongs to Laevidentaliidae'
- 'Dentalium aprinum belongs to Dentalium' according to Linnaeus 1767
- 'Dentalium crocinum is recombined as Calliodentalium crocinum'
- 'Entalina belongs to Entalinidae'
- 'Entalinidae belongs to Gadilida'
- 'Episiphon belongs to Gadilinidae'
- 'Eudoxochiton (Eudoxoplax) belongs to Eudoxochiton'
- 'Fissidentalium belongs to Dentaliidae'
- 'Fustiaria belongs to Fustiariidae'
- 'Fustiariidae belongs to Dentaliida'
- 'Gadila belongs to Gadilidae'
- 'Gadilida belongs to Scaphopoda'
- 'Gadilidae belongs to Gadilida'
- 'Gadilinidae belongs to Dentaliida'
- 'Graptacme belongs to Dentaliidae'
- 'Hemiarthrum belongs to Hanleyidae'
- 'Ischnochiton belongs to Ischnochitoninae'
- 'Ischnochiton (Haploplax) belongs to Ischnochiton'
- 'Ischnochiton (Heterozona) belongs to Ischnochiton'
- 'Ischnochiton (Stenosemus) belongs to Ischnochiton'
- 'Laevidentaliidae belongs to Dentaliida'
- 'Lepidozona belongs to Chaetopleurinae'
- 'Leptochiton belongs to Lepidopleuridae'
- 'Leptochiton (Parachiton) belongs to Leptochiton'
- 'Leptoplax belongs to Acanthochitonidae'
- 'Lorica belongs to Schizochitonidae'
- 'Loricella belongs to Schizochitonidae'
- 'Mucrosquama belongs to Chitoninae'
- 'Nautiloidea belongs to Cephalopoda'
- 'Notoplax belongs to Acanthochitonidae'
- 'Nuttallochiton belongs to Chaetopleurinae'
- 'Octopoda belongs to Coleoidea'
- 'Omniglypta belongs to Omniglyptidae'
- 'Omniglyptidae belongs to Dentaliida'
- 'Onithochiton belongs to Toniciinae'
- 'Particulazona belongs to Lepidochitoninae'
- 'Placiphorella belongs to Mopaliidae'
- 'Plaxiphora belongs to Mopaliidae'
- 'Polyplacophora belongs to Mollusca'
- 'Polyschides belongs to Gadilidae'
- 'Pulsellidae belongs to Gadilida'
- 'Pulsellum belongs to Pulsellidae'
- 'Rhyssoplax belongs to Chitoninae'
- 'Scaphopoda belongs to Mollusca'
- 'Schizochiton belongs to Schizochitonidae'
- 'Sepiida belongs to Coleoidea'
- 'Sepiolida belongs to Coleoidea'
- 'Stenochiton belongs to Ischnochitoninae'
- 'Subterenochiton belongs to Lepidochitoninae'
- 'Sypharochiton belongs to Chitoninae'
- 'Tegulaplax belongs to Chitoninae'
- 'Tesseracme belongs to Dentaliidae'
- 'Teuthida belongs to Coleoidea'
- 'Tonicia belongs to Toniciinae'
- 'Tonicia (Lucilina) belongs to Tonicia'
- 'Tonicia (Toniciopsis) belongs to Tonicia'
- 'Toniciinae belongs to Chitonidae'
- 'Vampyromorpha belongs to Coleoidea'