Opinions from R. C. Thomson and P. L. Smith 1992

  • 'Acanthopleuroceras belongs to Acanthopleuroceratinae'
  • 'Acanthopleuroceratinae belongs to Polymorphitidae'
  • 'Ammonites algovianus is recombined as Arieticeras algovianum'
  • 'Ammonites flandrini is recombined as Tropidoceras flandrini'
  • 'Ammonites ruthenense is recombined as Arieticeras ruthenense'
  • 'Ammonites stahli is recombined as Acanthopleuroceras stahli'
  • 'Ammonitina belongs to Ammonoidea'
  • 'Arieticeras belongs to Arieticeratinae'
  • 'Arieticeras accuratum is recombined as Leptaleoceras accuratum'
  • 'Arieticeratinae belongs to Hildoceratidae'
  • 'Aveyroniceras belongs to Dactylioceratidae'
  • 'Canavaria belongs to Arieticeratinae'
  • 'Coeloceras incertum is recombined as Reynesocoeloceras incertum'
  • 'Crucilobiceras mouterdei is recombined as Metaderoceras mouterdei'
  • 'Dactylioceratidae belongs to Eoderocerataceae'
  • 'Dayiceras belongs to Polymorphitinae'
  • 'Deroceras evolutum is recombined as Metaderoceras evolutum'
  • 'Dubariceras belongs to Eoderoceratidae'
  • 'Dubariceras freboldi belongs to Dubariceras'
  • 'Eoderocerataceae belongs to Ammonitina'
  • 'Eoderoceratidae belongs to Eoderocerataceae'
  • 'Fanninoceras belongs to Oxynoticeratidae'
  • 'Fanninoceras latum belongs to Fanninoceras'
  • 'Fuciniceras belongs to Arieticeratinae'
  • 'Harpoceratinae belongs to Hildoceratidae'
  • 'Hildocerataceae belongs to Ammonitina'
  • 'Hildoceratidae belongs to Hildocerataceae'
  • 'Leptaleoceras belongs to Arieticeratinae'
  • 'Metaderoceras belongs to Eoderoceratidae'
  • 'Metaderoceras talkeetnaense belongs to Metaderoceras'
  • 'Miltoceras belongs to Polymorphitinae'
  • 'Oxynoticeratidae belongs to Psilocerataceae'
  • 'Polymorphites belongs to Polymorphitinae'
  • 'Polymorphitidae belongs to Eoderocerataceae'
  • 'Polymorphitinae belongs to Polymorphitidae'
  • 'Protogrammoceras belongs to Harpoceratinae'
  • 'Psilocerataceae belongs to Ammonitina'
  • 'Reynesocoeloceras belongs to Dactylioceratidae'
  • 'Schloenbachia propinqua is recombined as Tiltoniceras propinquum'
  • 'Tiltoniceras belongs to Harpoceratinae'
  • 'Tropidoceras belongs to Acanthopleuroceratinae'
  • 'Uptonia belongs to Polymorphitinae'
  • 'Uptonia silviesi is recombined as Dubariceras silviesi'