Opinions from N. P. Schastlivtseva 1988

  • 'Nautilus acutus is recombined as Oxynautilus acutus'
  • 'Nautilus barrandei is recombined as Syringoceras barrandei'
  • 'Nautilus breunneri is recombined as Germanonautilus breunneri'
  • 'Nautilus brevior is recombined as Syringoceras brevior'
  • 'Nautilus brevis is recombined as Syringoceras breve'
  • 'Nautilus bullatus is recombined as Syringonautilus bullatus'
  • 'Nautilus ehrlichi is recombined as Clymenonautilus ehrlichi'
  • 'Nautilus eugyrus is recombined as Syringoceras eugyrum'
  • 'Nautilus evolutus is recombined as Syringoceras evolutum'
  • 'Nautilus fischeri is recombined as Enoploceras fischeri'
  • 'Nautilus galeatus is recombined as Gryponautilus galeatus'
  • 'Nautilus gasteroptychus is recombined as Proclydonautilus gasteroptychus'
  • 'Nautilus gemmatus is recombined as Phloioceras gemmatum'
  • 'Nautilus goniatites is recombined as Proclydonautilus goniatites'
  • 'Nautilus guembeli is recombined as Grypoceras guembeli'
  • 'Nautilus haloricus is recombined as Grypoceras haloricum'
  • 'Nautilus heterophyllus is recombined as Juvavionautilus heterophyllus'
  • 'Nautilus laubei is recombined as Grypoceras laubei'
  • 'Nautilus mesodicus is recombined as Grypoceras mesodicum'
  • 'Nautilus modestus is recombined as Paranautilus modestus'
  • 'Nautilus noricus is recombined as Clydonautilus noricus'
  • 'Nautilus obtusus is recombined as Grypoceras obtusum'
  • 'Nautilus perarmatus is recombined as Mojsvaroceras perarmatum'
  • 'Nautilus planilateratus is recombined as Enoploceras planilateratum'
  • 'Nautilus quenstedti is recombined as Clydonautilus quenstedti'
  • 'Nautilus ramsaueri is recombined as Holconautilus ramsaueri'
  • 'Nautilus rectangularis is recombined as Aulametacoceras rectangulare'
  • 'Nautilus salisburgensis is recombined as Clydonautilus salisburgensis'
  • 'Nautilus sauperi is recombined as Styrionautilus sauperi'
  • 'Nautilus schloenbachi is recombined as Germanonautilus schloenbachi'
  • 'Nautilus securis is recombined as Gonionautilus securus'
  • 'Nautilus simonyi is recombined as Paranautilus simonyi'
  • 'Nautilus spirolobus is recombined as Proclydonautilus spirolobus'
  • 'Nautilus styriacus is recombined as Styrionautilus styriacus'
  • 'Nautilus suessi is recombined as Gryponautilus suessi'
  • 'Nautilus superbus is recombined as Encoiloceras superbum'
  • 'Nautilus trapezoidalis is recombined as Juvavionautilus trapezoidalis'
  • 'Nautilus triadicus is recombined as Proclydonautilus triadicus'
  • 'Nautilus wulfeni is recombined as Enoploceras wulfeni'
  • 'Orthocera politum is recombined as Trematoceras politum'
  • 'Orthoceras austriacum is recombined as Trematoceras austriacum'
  • 'Orthoceras celticum is recombined as Trematoceras celticum'
  • 'Orthoceras dubium is recombined as Trematoceras dubium'
  • 'Orthoceras lateseptatum is recombined as Trematoceras lateseptatum'
  • 'Orthoceras pulchellum is recombined as Trematoceras pulchellum'
  • 'Orthoceras salinarium is recombined as Trematoceras salinarium'
  • 'Orthoceras sandlingense is recombined as Trematoceras sandlingense'
  • 'Orthoceras styriacum is recombined as Trematoceras styriacum'
  • 'Orthoceras triadicum is recombined as Trematoceras triadicum'
  • 'Paratrematoceras belongs to Michelinoceratinae'
  • 'Paratrematoceras shevyrevi belongs to Paratrematoceras' according to Schastlivtseva 1981
  • 'Paratrematoceras shevyrevi belongs to Paratrematoceras'
  • 'Pleuronautilus idahoensis is recombined as Phaedrysmocheilus idahoensis'