Opinions from W. J. Kennedy and W. A. Cobban 1993
- 'Ammonites delawarensis is recombined as Menabites (Delawarella) delawarensis'
- 'Ammonites delawarensis belongs to Ammonites' according to Morton 1830
- 'Ammonites hippocrepis is recombined as Scaphites (Scaphites) hippocrepis'
- 'Ammonites neubergicus is recombined as Pachydiscus (Pachydiscus) neubergicus'
- 'Ammonites placenta is recombined as Placenticeras placenta'
- 'Ammonites syrtalis is recombined as Placenticeras syrtale'
- 'Ammonites texanus belongs to Ammonites' according to Roemer 1852
- 'Ammonites texanus is recombined as Texanites (Texanites) texanus'
- 'Ammonites umbulazi belongs to Ammonites' according to Baily 1855
- 'Ammonites umbulazi is recombined as Pseudoschloenbachia (Pseudoschloenbachia) umbulazi'
- 'Ammonites vanuxemi belongs to Ammonites' according to Morton 1830
- 'Ammonites vanuxemi is recombined as Menabites (Delawarella) vanuxemi'
- 'Ammonites vanuxemi is recombined as Submortoniceras vanuxemi' according to Reeside 1962
- 'Baculites belongs to Baculitidae'
- 'Baculites ovatus haresi is recombined as Baculites haresi'
- 'Chesapeakella belongs to Diplomoceratinae'
- 'Chesapeakella nodatum belongs to Chesapeakella'
- 'Collignoniceratidae belongs to Acanthocerataceae'
- 'Cryptotexanites belongs to Texanitinae'
- 'Cryptotexanites paedomorphicus belongs to Cryptotexanites'
- 'Glyptoxoceras belongs to Diplomoceratinae'
- 'Hamites rugatus is recombined as Glyptoxoceras rugatus'
- 'Menabites belongs to Texanitinae'
- 'Menabites (Bererella) belongs to Menabites'
- 'Menabites (Bererella) bererensis belongs to Menabites (Bererella)'
- 'Menabites (Delawarella) belongs to Menabites' according to Collignon 1948
- 'Menabites menabensis is recombined as Menabites (Menabites) menabensis'
- 'Mortoniceras woodsi is recombined as Submortoniceras woodsi'
- 'Muniericeratidae belongs to Desmocerataceae'
- 'Pachydiscidae belongs to Desmocerataceae'
- 'Pachydiscus belongs to Pachydiscidae'
- 'Pachydiscus (Pachydiscus) belongs to Pachydiscus'
- 'Placenticeras belongs to Placenticeratidae'
- 'Placenticeratidae belongs to Hoplitaceae'
- 'Pseudoschloenbachia belongs to Muniericeratidae'
- 'Pseudoschloenbachia chispaensis belongs to Pseudoschloenbachia' according to Adkins 1929
- 'Pseudoschloenbachia chispaensis is recombined as Pseudoschloenbachia (Pseudoschloenbachia) chispaensis'
- 'Scaphites belongs to Scaphitinae'
- 'Scaphites (Scaphites) belongs to Scaphites'
- 'Stantonoceras pseudocostatum is a subjective synonym of Placenticeras syrtale'
- 'Submortoniceras belongs to Texanitinae'
- 'Submortoniceras punctatum belongs to Submortoniceras' according to Collignon 1948
- 'Submortoniceras punctatum belongs to Submortoniceras'
- 'Submortoniceras uddeni belongs to Submortoniceras' according to Young 1963
- 'Submortoniceras uddeni belongs to Submortoniceras'
- 'Texanites belongs to Texanitinae'
- 'Texanites (Texanites) belongs to Texanites'
- 'Texanitinae belongs to Collignoniceratidae'