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'