Opinions from R. H. Flower 1964

  • 'Balkoceras belongs to Balkoceratidae'
  • 'Balkoceras gracile belongs to Balkoceras'
  • 'Balkoceratidae belongs to Plectronoceratina'
  • 'Baltoceras belongs to Baltoceratidae'
  • 'Baltoceras pusillum is recombined as Rioceras pusillum'
  • 'Baltoceras striatum belongs to Baltoceras'
  • 'Baltoceratidae belongs to Ellesmeroceratina'
  • 'Barnesoceras belongs to Ellesmeroceratidae'
  • 'Barnesoceras clavatum belongs to Barnesoceras'
  • 'Barnesoceras conosiphonatum belongs to Barnesoceras'
  • 'Barnesoceras expansum belongs to Barnesoceras'
  • 'Barnesoceras lamellosum belongs to Barnesoceras'
  • 'Barnesoceras lentiexpansum belongs to Barnesoceras'
  • 'Barnesoceras percurvatum belongs to Barnesoceras'
  • 'Barnesoceras transversum belongs to Barnesoceras'
  • 'Boreoceras belongs to Ellesmeroceratidae'
  • 'Boreoceras brevicameratum belongs to Boreoceras'
  • 'Boreoceras ovale belongs to Boreoceras'
  • 'Boreoceras washburni belongs to Boreoceras'
  • 'Burenoceras belongs to Ellesmeroceratidae'
  • 'Burenoceras cornucopia belongs to Burenoceras'
  • 'Burenoceras muricoides belongs to Burenoceras'
  • 'Burenoceras phragmoceroides belongs to Burenoceras'
  • 'Cartersoceras belongs to Baltoceratidae'
  • 'Cartersoceras shideleri belongs to Cartersoceras'
  • 'Caseoceras obesum belongs to Caseoceras'
  • 'Clarkoceras [misspelled as Clarkeoceras] belongs to Ellesmeroceratidae'
  • 'Clelandoceras belongs to Ellesmeroceratidae'
  • 'Clelandoceras rarum belongs to Clelandoceras'
  • 'Conocerina belongs to Ellesmeroceratidae'
  • 'Conocerina brevis belongs to Conocerina' according to Ulrich and Foerste 1935
  • 'Conocerina unguloides belongs to Conocerina'
  • 'Cyptendoceras belongs to Baltoceratidae'
  • 'Cyptendoceras floridaense belongs to Cyptendoceras'
  • 'Cyptendoceras kirki belongs to Cyptendoceras'
  • 'Cyptendoceras rhythmicum belongs to Cyptendoceras'
  • 'Cyptendoceras richardsoni belongs to Cyptendoceras'
  • 'Cyptendocerina belongs to Ellesmeroceratida'
  • 'Cyrtoceras cambria belongs to Cyrtoceras' according to Walcott 1905
  • 'Cyrtoceras cambria is recombined as Plectronoceras cambria' according to Ulrich and Foerste 1933
  • 'Dakeoceras belongs to Ellesmeroceratidae'
  • 'Dakeoceras harrisi belongs to Dakeoceras'
  • 'Dakeoceras mutabile belongs to Dakeoceras'
  • 'Ectenolites belongs to Ellesmeroceratidae'
  • 'Ectenolites penecilin belongs to Ectenolites'
  • 'Ectenolites primus belongs to Ectenolites'
  • 'Ellesmeroceras belongs to Ellesmeroceratidae'
  • 'Ellesmeroceras robsonensis is recombined as Robsonoceras robsonense' according to Ulrich and Foerste 1936
  • 'Ellesmeroceras robsonensis is recombined as Robsonoceras robsonense'
  • 'Ellesmeroceras scheii belongs to Ellesmeroceras' according to Foerste 1921
  • 'Ellesmeroceras scheii belongs to Ellesmeroceras'
  • 'Ellesmeroceratida belongs to Nautiloidea'
  • 'Ellesmeroceratidae belongs to Ellesmeroceratina'
  • 'Ellesmeroceratina belongs to Ellesmeroceratida'
  • 'Endoceras burchardii is recombined as Baltoceras burchardi'
  • 'Endoceras consuetum is recombined as Rioceras consuetum'
  • 'Endocycloceras belongs to Protocycloceratidae'
  • 'Endocycloceras gracile belongs to Endocycloceras'
  • 'Endorioceras belongs to Baltoceratidae'
  • 'Endorioceras rarum belongs to Endorioceras'
  • 'Keraiaceras belongs to Ellesmeroceratidae'
  • 'Levisoceras belongs to Ellesmeroceratidae'
  • 'Levisoceras contractum belongs to Levisoceras'
  • 'Llanoceras belongs to Ellesmeroceratidae'
  • 'Llanoceras gracile belongs to Llanoceras'
  • 'Metabaltoceras belongs to Baltoceratidae'
  • 'Metabaltoceras fusiforme belongs to Metabaltoceras'
  • 'Metabaltoceras minutum belongs to Metabaltoceras'
  • 'Microbaltoceras belongs to Baltoceratidae'
  • 'Microbaltoceras minore belongs to Microbaltoceras'
  • 'Muriceras belongs to Ellesmeroceratidae'
  • 'Muriceras anomalum belongs to Muriceras'
  • 'Muriceras curviseptatum belongs to Muriceras'
  • 'Muriceras gracile belongs to Muriceras'
  • 'Muriceras hebetum belongs to Muriceras'
  • 'Muriceras micromurus belongs to Muriceras'
  • 'Muriceras moderatum belongs to Muriceras'
  • 'Muriceras murus belongs to Muriceras'
  • 'Muriceras obscurum belongs to Muriceras'
  • 'Murrayoceras belongs to Baltoceratidae'
  • 'Murrayoceras noveboracense is recombined as Cartersoceras noveboracense'
  • 'Palaeoceras belongs to Plectronoceratidae'
  • 'Palaeoceras mutabile belongs to Palaeoceras'
  • 'Palaeoceras undulatum belongs to Palaeoceras'
  • 'Piloceras newtonwinchelli [misspelled as Clarkeoceras newtonwinchelli] belongs to Clarkoceras'
  • 'Plectronoceras belongs to Plectronoceratidae'
  • 'Plectronoceras exile belongs to Plectronoceras'
  • 'Plectronoceratidae belongs to Plectronoceratina'
  • 'Plectronoceratina belongs to Ellesmeroceratida'
  • 'Protocycloceratidae belongs to Ellesmeroceratina'
  • 'Rhabdiferoceras annuliferum belongs to Rhabdiferoceras'
  • 'Rioceras dartoni belongs to Rioceras'
  • 'Rioceras depressum belongs to Rioceras'
  • 'Rioceras expansum belongs to Rioceras'
  • 'Rioceras fusiforme belongs to Rioceras'
  • 'Rioceras lobatum belongs to Rioceras'
  • 'Rioceras nondescriptum belongs to Rioceras'
  • 'Rioceras tubulare belongs to Rioceras'
  • 'Rioceras wellsi belongs to Rioceras'
  • 'Robsonoceras belongs to Ellesmeroceratidae'
  • 'Ruthenoceras belongs to Ellesmeroceratidae'
  • 'Woosteroceras belongs to Ellesmeroceratidae'
  • 'Woosteroceras flexiseptatum belongs to Woosteroceras'
  • 'Woosteroceras percurvatum belongs to Woosteroceras'
  • 'Woosteroceras spirale belongs to Woosteroceras'