Opinions from C. Ifrim et al. 2015
- 'Ammonites forbesianum is recombined as Phyllopachyceras forbesianum'
- 'Ancyloceras jenneyi is recombined as Exiteloceras jenneyi'
- 'Baculites belongs to Baculitidae'
- 'Baculites cylindracea is recombined as Diplomoceras cylindraceum'
- 'Baculites taylorensis belongs to Baculites' according to Adkins 1929
- 'Baculites taylorensis belongs to Baculites'
- 'Baculitidae belongs to Turrilitoidea'
- 'Bostrychoceras belongs to Nostoceratidae'
- 'Bostrychoceras donezianum belongs to Bostrychoceras' according to Michailov 1951
- 'Bostrychoceras donezianum is recombined as Didymoceras donezianum'
- 'Bostrychoceras secoense belongs to Bostrychoceras' according to Young 1963
- 'Bostrychoceras secoense is a subjective synonym of Bostrychoceras polyplocum'
- 'Didymoceras belongs to Nostoceratidae'
- 'Diplomoceras belongs to Diplomoceratinae'
- 'Diplomoceras maximum belongs to Diplomoceras' according to Olivero and Zinsmeister 1989
- 'Diplomoceras maximum is a subjective synonym of Diplomoceras cylindraceum'
- 'Diplomoceratidae belongs to Turrilitoidea'
- 'Diplomoceratinae belongs to Diplomoceratidae'
- 'Eutrephoceras belongs to Nautilidae'
- 'Eutrephoceras irritilasi belongs to Eutrephoceras'
- 'Exiteloceras belongs to Nostoceratidae'
- 'Menuites belongs to Pachydiscidae'
- 'Nostoceras belongs to Nostoceratidae'
- 'Nostoceras hyatti belongs to Nostoceras'
- 'Nostoceratidae belongs to Turrilitoidea'
- 'Oxybeloceras belongs to Polyptychoceratinae'
- 'Pachydiscidae belongs to Desmocerataceae'
- 'Phylloceratidae belongs to Phylloceratoidea'
- 'Phylloceratinae belongs to Phylloceratidae'
- 'Phyllopachyceras belongs to Phylloceratinae'
- 'Polyptychoceratinae belongs to Diplomoceratidae'
- 'Ptychoceras crassum is recombined as Oxybeloceras crassum'
- 'Ptychoceras texanus is recombined as Solenoceras texanum'
- 'Scaphitaceae is corrected as Scaphitoidea and belongs to Ancyloceratina'
- 'Scaphitidae belongs to Scaphitoidea'
- 'Scaphitinae belongs to Scaphitidae'
- 'Solenoceras belongs to Polyptychoceratinae'
- 'Solenoceras elegans belongs to Solenoceras'
- 'Trachyscaphites belongs to Scaphitinae'
- 'Turrilitaceae is corrected as Turrilitoidea and belongs to Ancyloceratina'
- 'Turrilites polyplocus is recombined as Bostrychoceras polyplocum'