Opinions from W. J. Kennedy and M. D. Simmons 1991
- 'Acanthocerataceae belongs to Ammonoidea'
- 'Acanthoceratidae belongs to Acanthocerataceae'
- 'Acanthoceratinae belongs to Acanthoceratidae'
- 'Ammonites catinus belongs to Ammonites' according to Mantell 1822
- 'Ammonites catinus is recombined as Fagesia catinus'
- 'Ammonites footeanus belongs to Ammonites' according to Stolickzka 1864
- 'Ammonites footeanus is recombined as Pseudaspidoceras footeanum'
- 'Ammonites navicularis belongs to Ammonites' according to Mantell 1822
- 'Ammonites navicularis is recombined as Calycoceras (Calycoceras) navicularis'
- 'Ammonites syriacus is recombined as Knemiceras syriacum'
- 'Ammonites syriacus belongs to Ammonites' according to von Buch 1850
- 'Ammonites vibrayeanus belongs to Ammonites' according to d'Orbigny 1841
- 'Ammonites vibrayeanus is recombined as Neolobites vibrayeanus'
- 'Ancyloceratina belongs to Ammonoidea'
- 'Bauchioceras (Wrightoceras) was reranked as Wrightoceras and belongs to Pseudotissotinae'
- 'Bauchioceras (Wrightoceras) wallsi belongs to Bauchioceras (Wrightoceras)' according to Reyment 1954
- 'Bauchioceras (Wrightoceras) wallsi is recombined as Wrightoceras wallsi'
- 'Calycoceras belongs to Acanthoceratinae'
- 'Calycoceras (Calycoceras) belongs to Calycoceras'
- 'Calycoceras (Eucalycoceras) besairieri belongs to Calycoceras (Eucalycoceras)' according to Collignon 1937
- 'Calycoceras (Eucalycoceras) besairieri is recombined as Calycoceras (Proeucalycoceras) besairieri'
- 'Coilopoceratidae belongs to Acanthocerataceae'
- 'Engonoceratidae belongs to Hoplitaceae'
- 'Eotissotia belongs to Pseudotissotinae'
- 'Eotissotia simplex belongs to Eotissotia'
- 'Eucalycoceras was reranked as Calycoceras (Eucalycoceras) and belongs to Calycoceras' according to Collignon 1937
- 'Eucalycoceras (Proeucalycoceras) belongs to Eucalycoceras' according to Thomel 1972
- 'Eucalycoceras (Proeucalycoceras) is reassigned into Calycoceras'
- 'Euomphaloceratinae belongs to Acanthoceratidae'
- 'Fagesia belongs to Vascoceratinae'
- 'Herrickiceras belongs to Coilopoceratidae'
- 'Hoplitaceaea is corrected as Hoplitaceae and belongs to Ammonoidea'
- 'Knemiceras belongs to Engonoceratidae'
- 'Knemiceras dubertreti belongs to Knemiceras' according to Basse 1940
- 'Knemiceras dubertreti belongs to Knemiceras'
- 'Neolobites belongs to Engonoceratidae'
- 'Olcostephanus superstes is recombined as Fagesia superstes'
- 'Olcostephanus superstes belongs to Olcostephanus' according to Kossmat 1897
- 'Pachydiscus durandi is recombined as Ammonites durandi' according to Peron 1890
- 'Pachydiscus durandi is recombined as Vascoceras durandi'
- 'Pachydiscus rollandi belongs to Pachydiscus' according to Peron 1890
- 'Pachydiscus rollandi is recombined as Thomasites rollandi'
- 'Paramammites belongs to Vascoceratinae'
- 'Placenticeras costatum is recombined as Herrickiceras costatus'
- 'Placenticeras costatum belongs to Placenticeras' according to Herrick and Johnson 1900
- 'Pseudaspidoceras belongs to Euomphaloceratinae'
- 'Pseudotissotinae belongs to Vascoceratidae'
- 'Thomasites belongs to Pseudotissotinae'
- 'Turrilitaceae belongs to Ancyloceratina'
- 'Turrilites belongs to Turrilitidae'
- 'Turrilites (Turrilites) belongs to Turrilites'
- 'Turrilites costata belongs to Turrilites' according to Lamarck 1801
- 'Turrilites costata is recombined as Turrilites (Turrilites) costatus'
- 'Turrilitidae belongs to Turrilitaceae'
- 'Vascoceras belongs to Vascoceratinae'
- 'Vascoceras gamai belongs to Vascoceras'
- 'Vascoceras gongilensis is recombined as Thomasites gongilensis'
- 'Vascoceras polymorphum is recombined as Paramammites polymorphum'
- 'Vascoceratidae belongs to Acanthocerataceae'
- 'Vascoceratinae belongs to Vascoceratidae'