Opinions from P. Marshall 1926
- 'Acanthoceras ultimum belongs to Acanthoceras'
- 'Ammonites forbesianum is recombined as Phylloceras forbesianum'
- 'Ammonites indra is recombined as Pseudophyllites indra'
- 'Ammonites nera is recombined as Phylloceras nera'
- 'Baculites rectus belongs to Baculites'
- 'Brahmaites rotundus belongs to Brahmaites'
- 'Diplomoceras wakanene belongs to Diplomoceras'
- 'Gaudryceras crenatum belongs to Gaudryceras'
- 'Gaudryceras particostatum belongs to Gaudryceras'
- 'Gaudryceras propemite belongs to Gaudryceras'
- 'Gaudryceras subsacya belongs to Gaudryceras'
- 'Hauericeras ngapuhi belongs to Hauericeras'
- 'Jacobites angularis belongs to Jacobites'
- 'Jacobites minimus belongs to Jacobites'
- 'Jacobites waitapuensis belongs to Jacobites'
- 'Jacobites whangaroaensis belongs to Jacobites'
- 'Kossmaticeras (Gunnarites) antarcticum inflatum belongs to Kossmaticeras (Gunnarites) antarcticum' according to Kilian and Reboul 1909
- 'Kossmaticeras (Gunnarites) antarcticum inflatum is recombined as Gunnarites inflatus'
- 'Kossmaticeras (Gunnarites) antarcticum nordenskjoldi belongs to Kossmaticeras (Gunnarites) antarcticum' according to Kilian and Reboul 1909
- 'Kossmaticeras (Gunnarites) antarcticum nordenskjoldi is recombined as Gunnarites nordenskjoldi'
- 'Kossmaticeras (Jacobites) anderssoni is recombined as Jacobites anderssoni'
- 'Kossmaticeras (Jacobites) anderssoni belongs to Kossmaticeras (Jacobites)' according to Kilian and Reboul 1909
- 'Kossmaticeras (Madrasites) densicostatus is recombined as Maorites densicostatus'
- 'Kossmaticeras tenuicostatum is recombined as Maorites tenuicostatus'
- 'Kossmaticeras zelandicum belongs to Kossmaticeras' according to Marshall 1917
- 'Kossmaticeras zelandicum is recombined as Gunnarites zelandicus'
- 'Lytoceras (Gaudryceras) politissimum is recombined as Gaudryceras politissimum'
- 'Lytoceras (Tetragonites) epigonus is recombined as Tetragonites epigonus'
- 'Madrasites fortior belongs to Madrasites'
- 'Madrasites multicostatus belongs to Madrasites'
- 'Madrasites regularis belongs to Madrasites'
- 'Madrasites sulcatus belongs to Madrasites'
- 'Maorites suturalis belongs to Maorites'
- 'Neomadrasites nodulosus belongs to Neomadrasites'
- 'Nowakites denticulatus belongs to Nowakites'
- 'Olcostephanus antarcticus is recombined as Gunnarites antarcticus'
- 'Parapachydiscus rogeri belongs to Parapachydiscus'
- 'Parapuzosia brevicostata belongs to Parapuzosia'
- 'Parapuzosia ordinaria belongs to Parapuzosia'
- 'Phylloceras bistriatum belongs to Phylloceras'
- 'Phylloceras minimum belongs to Phylloceras'
- 'Phylloceras radiatum belongs to Phylloceras'
- 'Pseudophyllites whangaroaensis belongs to Pseudophyllites'
- 'Ptychoceras zelandicum belongs to Ptychoceras'
- 'Puzosia angusta belongs to Puzosia'
- 'Schluteria rarawa belongs to Schluteria'
- 'Tainuia aucklandica belongs to Tainuia'
- 'Tetragonites latus belongs to Tetragonites'
- 'Tetragonites margaritatus belongs to Tetragonites'
- 'Tetragonites simplex belongs to Tetragonites'
- 'Vertebrites murdochi belongs to Vertebrites'
- 'Zelandites kaiparaensis belongs to Zelandites'