Opinions from Y. Shigeta 2016

  • 'Ammonites diphylloides is recombined as Desmophyllites diphylloides'
  • 'Baculites belongs to Baculitidae'
  • 'Baculites subanceps belongs to Baculites'
  • 'Baculitidae belongs to Turrilitoidea'
  • 'Canadoceras belongs to Pachydiscidae'
  • 'Canadoceras multicostatum belongs to Canadoceras'
  • 'Desmocerataceae is corrected as Desmoceratoidea and belongs to Ammonitina'
  • 'Desmoceratidae belongs to Desmoceratoidea'
  • 'Desmophyllites belongs to Desmoceratidae'
  • 'Didymoceras belongs to Nostoceratidae'
  • 'Didymoceras hidakense belongs to Didymoceras'
  • 'Gaudryceras belongs to Gaudryceratidae'
  • 'Gaudryceratidae belongs to Tetragonitoidea'
  • 'Hoplitaceaea is corrected as Hoplitoidea and belongs to Ammonitina'
  • 'Lytoceras (Tetragonites) was reranked as Tetragonites and belongs to Tetragonitidae'
  • 'Lytoceras (Tetragonites) henleyense is a subjective synonym of Tetragonites popetensis'
  • 'Lytoceras crassicostatum belongs to Lytoceras' according to Jimbo 1894
  • 'Lytoceras crassicostatum is recombined as Gaudryceras crassicostatum'
  • 'Menuites belongs to Pachydiscidae'
  • 'Metaplacenticeras belongs to Placenticeratidae'
  • 'Nostoceratidae belongs to Turrilitoidea'
  • 'Pachydiscidae belongs to Desmoceratoidea'
  • 'Pachydiscus belongs to Pachydiscidae'
  • 'Pachydiscus excelsus belongs to Pachydiscus' according to Matsumoto 1979
  • 'Pachydiscus excelsus belongs to Pachydiscus'
  • 'Placenticeras subtilistriatum is recombined as Metaplacenticeras subtilistriatum'
  • 'Placenticeratidae belongs to Hoplitoidea'
  • 'Saghalinites belongs to Tetragonitidae'
  • 'Saghalinites teshioensis belongs to Saghalinites'
  • 'Tetragonitaceae is corrected as Tetragonitoidea and belongs to Lytoceratina'
  • 'Tetragonites popetensis belongs to Tetragonites' according to Yabe 1903
  • 'Tetragonites popetensis belongs to Tetragonites'
  • 'Tetragonitidae belongs to Tetragonitoidea'
  • 'Turrilitaceae is corrected as Turrilitoidea and belongs to Ancyloceratina'